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The Science Behind Streak-Free Windows: What Professionals Do Differently
When it comes to window cleaning, nothing beats the satisfaction of streak-free, crystal-clear glass. But achieving this pristine finish isn’t as simple as grabbing a cloth and some spray. Professional window cleaners have mastered the science behind streak-free windows, using specific techniques and tools to deliver flawless results. Here’s what they do differently and why their methods are so effective.
1. Using the Right Tools for the Job
Professionals don’t rely on standard cleaning products or paper towels to get the job done. Instead, they use high-quality tools specifically designed for window cleaning. Key items in their arsenal include:
- Squeegees: The cornerstone of any professional’s toolkit, squeegees ensure even water removal, leaving no streaks behind. The rubber blades are replaced regularly to maintain their effectiveness.
- Microfiber Cloths: Unlike traditional rags, microfiber cloths are lint-free and highly absorbent, making them perfect for detailing and edge cleaning.
- Specialized Cleaning Solutions: Professionals often use eco-friendly, ammonia-free solutions that dissolve dirt and grease without leaving residues.
- Water-Fed Poles: For high-rise or hard-to-reach windows, water-fed poles equipped with purified water systems are used to clean without streaking.
2. The Importance of Purified Water
One of the secrets to streak-free windows lies in the water itself. Tap water contains minerals, salts, and impurities that can leave behind spots and streaks when it dries. Professionals use purified water systems that remove these contaminants, ensuring a spotless finish.
Purified water also has a natural ability to dissolve dirt and grime more effectively than regular water. When combined with the right tools, it creates the perfect formula for crystal-clear windows.
3. Perfecting the Technique
The way professionals clean windows is just as important as the tools they use. Here are some techniques they employ to achieve streak-free results:
- Pre-Cleaning: Before tackling the glass, professionals remove loose dirt and debris from the surface to prevent scratches.
- Systematic Movements: Using a squeegee, they clean in overlapping strokes, starting at the top and working their way down. This ensures no spots are missed and prevents water from dripping onto already cleaned areas.
- Edge Detailing: Professionals pay special attention to the edges and corners of the glass, where streaks are most likely to form. Microfiber cloths are often used for this step.
- Drying Techniques: Any remaining water is carefully wiped away to prevent streaking. This step is crucial, especially in areas with high humidity.
4. Timing Matters
Professional window cleaners know that timing can make or break the outcome. Cleaning windows on a sunny day might seem like a good idea, but direct sunlight causes cleaning solutions to dry too quickly, leaving streaks behind. Professionals prefer overcast days or cooler parts of the day to ensure optimal results.
5. Safety First
For high-rise buildings or windows in hard-to-reach places, safety is a top priority. Professionals use specialized equipment like harnesses, ladders, and scaffolding to ensure they can clean effectively without compromising safety. This expertise allows them to tackle challenging jobs while maintaining streak-free quality.
6. Experience and Training
What truly sets professionals apart is their experience. Years of practice have honed their skills, allowing them to identify and address potential issues, like hard water stains or stubborn grime, before they become a problem. Their training ensures they can adapt to different types of glass and environments, delivering consistent results every time.
A Trusted Name in Toronto
When it comes to achieving streak-free windows, Toronto Window Cleaners has perfected the art. With over 20 years of experience, their team of fully trained and certified professionals uses advanced techniques and tools to deliver exceptional results. Whether it’s a residential property or a high-rise building, they’ve built a reputation for excellence across the Greater Toronto Area.
In conclusion, the science behind streak-free windows is a blend of using the right tools, employing expert techniques, and understanding the conditions that impact cleaning results. By trusting professionals, you’re not just ensuring sparkling windows—you’re investing in a methodical process that guarantees perfection every time.
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German Antisemitism Commissioner Targeted With Death Threat Letter After Arson Attack on Home
Andreas Büttner (Die Linke), photographed during the state parliament session. The politician was nominated for the position of Brandenburg’s anti-Semitism commissioner. Photo: Soeren Stache/dpa via Reuters Connect
Andreas Büttner, the commissioner for antisemitism in the state of Brandenburg in northeastern Germany, has been targeted the second attack in under a week after receiving a death threat, sparking outrage and prompting local authorities to launch a full investigation.
According to the German newspaper Potsdamer Neueste Nachrichten (PNN), the Brandenburg state parliament received a letter on Monday threatening Büttner’s life, with the words “We will kill you” and an inverted red triangle, the symbol of support for the Islamist terrorist group Hamas.
State security police have examined the anonymous letter under strict safety measures, determining that a gray substance inside was harmless. Authorities are now probing the incident as part of an ongoing investigation into threats against the German official.
Ulrike Liedtke, president of the Brandenburg state parliament, condemned the latest attack on Büttner, describing the death threats and harassment as “completely unacceptable.”
“Threats and violence are not a form of political discourse, but crimes against humanity,” Liedtke said. “Andreas Büttner has our complete support and solidarity.”
A former police officer and member of the Left Party, Büttner took office as commissioner for antisemitism in 2024 and has faced repeated attacks since.
On Sunday night, Büttner’s private property in Templin — a town located approximately 43 miles north of Berlin — was targeted in an arson attack, and a red Hamas triangle was spray-painted on his house.
The home of Germany’s antisemitism commissioner, Andreas Büttner, was set on fire overnight in a targeted attack.
His family was inside the house at the time.
This is the second attack against Büttner in the past 16 months. His car was previously vandalized with swastikas. This… pic.twitter.com/cAbFnMIwQ7
— Combat Antisemitism Movement (@CombatASemitism) January 5, 2026
According to Büttner, his family was inside the house at the time of the attack, marking the latest assault against him in the past 16 months.
“The symbol sends a clear message. The red Hamas triangle is widely recognized as a sign of jihadist violence and antisemitic incitement,” Büttner said in a statement after the incident.
“Anyone who uses such a thing wants to intimidate and glorify terror. This is not a protest, it is a threat,” he continued.
Hamas uses inverted red triangles in its propaganda videos to indicate Israeli targets about to be attacked. The symbol, a common staple at pro-Hamas rallies, has come to represent the Palestinian terrorist group and glorify its use of violence.
In August 2024, swastikas and other symbols and threats were also spray-painted on Büttner’s personal car.
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Harvard President Blasts Scholar Activism, Calls for ‘Restoring Balance’ in Higher Ed
Harvard University President Alan Garber speaks during the 374th Commencement exercises at Harvard University in Cambridge, Massachusetts, US, May 29, 2025. Photo: REUTERS/Brian Snyder
Harvard University president Alan Garber, fresh off a resounding endorsement in which the Harvard Corporation elected to keep him on the job “indefinitely,” criticized progressive faculty in a recent podcast interview for turning the university classroom into a pulpit for the airing of their personal views on contentious political issues.
Garber made the comments last week on the “Identity/Crisis Podcast,” a production of the Shalom Hartman Institute, a Jewish think tank which specializes in education research.
“I think that’s where we went wrong,” Garber said, speaking to Yehuda Kurtzer. “Because think about it, if a professor in a classroom says, ‘This is what I believe about this issue,’ how many students — some of you probably would be prepared to deal with this, but most people wouldn’t — how many students would actually be willing to go toe to toe against a professor who’s expressed a firm view about a controversial issue?”
Garber continued, saying he believes higher education, facing a popular backlash against what critics have described as political indoctrination, is now seeing a “movement to restore balance in teaching and to bring back the idea that you really need to be objective in the classroom.”
He added, “What we need to arm our students with is a set of facts and a set of analytic tools and cultivation of rigor in analyzing these issues.”
Coming during winter recess and the Jewish and Christian holidays, Garber’s interview fell under the radar after it was first aired but has been noticed this week, with some observers pointing to it as evidence that Harvard is leading an effort to restore trust in the university even as it resists conceding to the Trump administration everything it has demanded regarding DEI (diversity, equity, and inclusion), viewpoint diversity, and expressive activity such as protests.
As previously reported by The Algemeiner, Garber has spent the past two years fighting factions from within and without the university that have demanded to steer its policies and culture — from organizers of an illegal anti-Israel encampment to US President Donald Trump, who earlier this year canceled $2.26 billion in public money for Harvard after it refused to grant his wishlist of reforms for which the conservative movement has clamored for decades.
Even as Harvard tells Trump “no,” it has enacted several policies as a direct response to criticisms that the institution is too permissive of antisemitism for having allowed anti-Zionist extremism to reach the point of antisemitic harassment and discrimination. In 2025, the school agreed to incorporate into its policies a definition of antisemitism supported by most of the Jewish community, established new rules governing campus protests, and announced new partnerships with Israeli academic institutions. Harvard even shuttered a DEI office and transferred its staff to what will become, according to a previous report by The Harvard Crimson, a “new Office of Culture and Community.” The paper added that Harvard has even “worked to strip all references to DEI from its website.”
Appointed in January 2024 as interim president, Garber — who previously served in roles as Harvard’s provost and chief academic officer — rose to the top position at America’s oldest and, arguably, most prestigious institution at a time when the job was least desirable. At the time, Harvard was being pilloried over some of its students cheering Hamas’s Oct. 7, 2023, massacre across southern Israel and even forming gangs which mobbed Jewish students wending their way through campus; the university had suffered the embarrassment of its first Black president being outed as a serial plagiarist, a stunning disclosure which called into question its vetting procedures as well as its embrace of affirmative action; and anti-Israel activists on campus were disrupting classes and calling for others to “globalize the intifada.”
Garber has since won over the Harvard Corporation, which has refused to replace him during a moment that has been described as the most challenging in its history.
“Alan’s humble, resilient, and effective leadership has shown itself to be not just a vital source of calm in turbulent times, but also a generative force for sustaining Harvard’s commitment to academic excellence and to free inquiry and expression,” Harvard Corporation senior fellow Penny Pritzker said in a statement issued on behalf of the body, which is the equivalent of a board of trustees. “From restoring a sense of community during a period of intense scrutiny and division to launching vital new programs on viewpoint diversity and civil discourses and instituting new actions to fight antisemitism and anti-Arab bias, Alan has not only stabilized the university but brought us together in support of our shared mission.”
Follow Dion J. Pierre @DionJPierre.
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Holocaust Survivors Sent Care Packages to Oct. 7 Hostages for Hanukkah
The Menorah for Hanukkah on the Square 2025 in Trafalgar Square, London, United Kingdom, Dec. 14, 2025. Photo: Matthew Chattle/Cover Images via Reuters Connect
Survivors of the Holocaust spread holiday cheer this Hanukkah by delivering care packages to a group of 20 hostages whom the terrorist group Hamas recently released from captivity to fulfill the requirements of a ceasefire which suspended hostilities with Israel.
The gifts, dropped off at the Israeli consulate office in New York City, was made possible by The Blue Card, the only US-based charity organization which provides financial assistance and other services to survivors of the Holocaust. Originally founded in 1934 to assist Jews who had fled Germany to escape Hitler’s persecution of the country’s Jews, it has operated ceaselessly for nearly a century.
Over the past two years, the world has seen a revival of antisemitism unlike any since the period in which The Blue Card was founded, sparked by the Hamas-led Oct. 7, 2023, massacre that claimed the lives over of 1,200 Israelis and stole years and even more lives from 251 more who were kidnapped and held hostage in Gaza.
Some of the hostages who survived captivity have been released in stages since Israel and Hamas agreed on a ceasefire in October, and on Monday, Blue Card executive director Masha Pearl said the organization felt it necessary to reach out to them due to their having experienced a plight that is painfully familiar to what its clients endured in Europe during the Holocaust. Pearl also discussed the Bondi Beach mass shooting, in which a father and son inspired by Islamism opened fire on Jews celebrating the start of Hanukkah, murdering 15 people and injuring 40 others.
“Holocaust survivors and former hostages share a uniquely painful bond shaped by survival and resilience,” Pearl said. “After witnessing a mass shooting at a Chanukah event in Sydney, it felt even more urgent for our survivors to deliver these care packages now, spreading light at a moment that feels dark for the entire Jewish world. The resilience of the Holocaust survivors we assist, the former hostages, and now the survivors of the attack in Australia remind us that even in the face of hatred and violence, the Jewish people remain united.”
In a press release Blue Card said the care packages “carried profound meaning,” being filled to the brim with goods of all sorts, from blankets and water bottles to chap stick and even handwritten notes from the Holocaust survivors who sent them.
Follow Dion J. Pierre @DionJPierre.
