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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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Yemen’s Separatists Appear to Split, Reflecting Saudi-UAE Rift
Supporters of the UAE-backed separatist Southern Transitional Council (STC) hold a poster of Aidarous al-Zubaidi, the STC’s leader, who, according to the Saudi-backed coalition, fled to an unknown destination, in Aden, Yemen, Dec. 21, 2025. Photo: REUTERS/Fawaz Salman
Yemen’s main separatist group appeared split on Friday as some members announced it was disbanding, reflecting a feud between Gulf powers Saudi Arabia and the United Arab Emirates that was blown into the open by a separatist advance last month.
Saudi-backed fighters have largely retaken areas in southern and eastern Yemen seized by the UAE-backed Southern Transitional Council (STC) in December, and an STC delegation has traveled to the Saudi capital Riyadh for talks.
However, STC leader Aidarous al-Zubaidi fled Yemen on Wednesday instead of joining the talks, with the Saudi-led coalition in Yemen saying the UAE had helped spirit him away on a flight that was tracked to a military airport in Abu Dhabi.
One of the members who traveled to Riyadh for the talks said in a statement broadcast on Saudi state media on Friday that the group had decided to disband.
But the STC says it has had no communication with the delegation that initiated the talks under Saudi sponsorship.
A spokesperson who did not travel to Riyadh and is close to Zubaidi said any decision on the group’s fate can only be taken by the entire council, including its leader.
Any such decision would only be taken once the delegation in Riyadh “is released,” he said.
Saudi Arabia’s Defense Minister Khalid bin Salman welcomed the decision as a “brave” one. A conference would be held in Saudi Arabia to discuss southern Yemeni issues with all groups invited, he said.
Saudi Arabia and the UAE had previously worked together in a coalition battling the Iran-backed Houthis in Yemen’s civil war, a conflict which caused one of the world’s worst humanitarian crises.
But the two most powerful countries in the Gulf have had sharp differences over issues ranging from geopolitics to oil output. Their rivalry was exposed when the STC advanced to within reach of Yemen’s border with Saudi Arabia, which Riyadh declared a threat to its national security.
The STC on Friday called for mass protests in the southern cities of Aden and Mukalla, urging supporters to rally on Saturday in a show of “loyalty and steadfastness” amid the political crisis.
Authorities in Aden aligned with Yemen’s Saudi-backed government later ordered a ban on demonstrations in the southern city, citing security concerns, according to an official directive seen by Reuters.
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Gal Gadot to Produce, Potentially Star in Paramount Film Adaption of ‘Recovery Agent’ Book Series
Gal Gadot at the 82nd Annual Golden Globe Awards at the Beverly Hilton Hotel in Beverly Hills, California on Sunday, Jan. 5, 2025. Photo: Dan MacMedan-USA TODAY via Reuters Connect
Paramount Pictures has acquired the rights to the bestselling Recovery Agent book series by Janet Evanovich, and Israeli actress Gal Gadot will produce and potentially star in the feature film, Deadline reported.
The former “Wonder Woman” star and her husband and business partner Jaron Varsano will produce under their television and film production company Pilot Wave, with a screenplay written by Ellen Shanman (“Voltron”). Paramount will also develop and produce the film with Carol Mendelsohn and Julie Weitz from Carol Mendelsohn Productions, according to Deadline.
The Recovery Agent was published in 2022 and its sequel “The King’s Random” was published in November 2025, each by Atria Books. Both books have been New York Times bestsellers. The protagonist in Evanovich’s book series is Gabriela Rose, an international recovery agent who specializes in retrieving stolen or lost high-value items, often in dangerous missions. Her partner is her ex-husband Rafer Burke, and together they travel the world looking for valuable treasures.
Gadot’s most recent credits include Julian Schnabel’s “In the Hand of Dante,” which premiered at the 2025 Venice Film Festival, Kevin Macdonald’s action thriller “The Runner” for Amazon International, and the live-action remake of the Disney classic “Snow White.” Her past credits include the “Wonder Woman” films, the “Fast & Furious” franchise, “Heart of Stone,” and “Red Notice,” which is Netflix’s second most-popular film of all time.
Evanovich has written 46 New York Times bestsellers over the last 28 years and has sold over 200 million books worldwide, according to Deadline. She is also the author of the Stephanie Plum 31-book series and its most recent installment, Now or Never, debuted on top of the New York Times bestseller list.
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Iran Shuts Off Internet as Anti-Regime Protests Intensify Across Country
Protesters gather as vehicles burn, amid evolving anti-government unrest, in Tehran, Iran, in this screen grab obtained from a social media video released on Jan. 9, 2026. Photo: Social Media/via REUTERS
Iran was largely cut off from the outside world on Friday after authorities blacked out the internet to curb growing unrest, as video showed buildings aflame in anti-government protests raging in cities across the country.
Rights groups have already documented dozens of deaths of protesters in nearly two weeks and, with Iranian state TV showing clashes and fires, the semi-official Tasnim news agency reported that several police officers had been killed overnight.
In a televised address, Supreme Leader Ayatollah Ali Khamenei vowed not to back down, accusing demonstrators of acting on behalf of émigré opposition groups and the United States, and a public prosecutor threatened death sentences.
DOZENS KILLED IN TWO WEEKS OF PROTEST
The protests pose the biggest internal challenge in at least three years to Iran‘s clerical rulers, who look more vulnerable than during past bouts of unrest amid a dire economic situation and after last year’s war with Israel and the United States.
While the initial protests were focused on the economy, with the rial currency losing half its value against the dollar last year and inflation topping 40% in December, they have morphed to include slogans aimed directly at the authorities.
Iranian rights group HRANA said on Friday it had documented the deaths of at least 62 people including 14 security personnel and 48 protesters since demonstrations began on Dec. 28.
The internet blackout has sharply reduced the amount of information flowing out of the country. Phone calls into Iran were not getting through. At least 17 flights between Dubai and Iran were canceled, Dubai Airport’s website showed.
Images published by state television overnight showed what it said were burning buses, cars, and motorbikes as well as fires at underground railway stations and banks.
Videos verified by Reuters as having been taken in the capital Tehran showed hundreds of people marching. In one of the videos, a woman could be heard shouting “Death to Khamenei!”
Other chants included slogans in support of the monarchy.
Iranian rights group Hengaw reported that a protest march after Friday prayers in Zahedan, where the Baluch minority predominates, was met with gunfire that wounded several people.
Authorities have tried a dual approach – describing protests over the economy as legitimate while condemning what they call violent rioters and cracking down with security forces.
Last week President Masoud Pezeshkian urged authorities to take a “kind and responsible approach,” and the government offered modest financial incentives to help counter worsening impoverishment as inflation has soared.
But with unrest spreading and clashes appearing more violent, the Supreme Leader, the ultimate authority in Iran, above the elected president and parliament, used much tougher language on Friday.
“The Islamic Republic came to power through the blood of hundreds of thousands of honorable people. It will not back down in the face of vandals,” he said, accusing those involved in unrest of seeking to please US President Donald Trump.
Tehran’s public prosecutor said those committing sabotage, burning public property, or engaging in clashes with security forces would face the death penalty.
FRAGMENTED OPPOSITION
Iran‘s fragmented external opposition factions called for more protests, and demonstrators have chanted slogans including “Death to the dictator!” and praising the monarchy that was overthrown in 1979.
Reza Pahlavi, exiled son of the late shah, told Iranians in a social media post: “The eyes of the world are upon you. Take to the streets.”
However, the extent of support inside Iran for the monarchy or for the MKO, the most vocal of émigré opposition groups, is disputed. A spokesperson for the MKO said units with the group had taken part in the protests.
“The sense of hopelessness in Iranian society is something today that we haven’t seen before. I mean, that sense of anger has just deepened over the years and we are at record new levels in terms of how Iranian society is upset,” said Alex Vatanka of the Middle East Institute in Washington.
Trump, who bombed Iran last summer and warned Tehran last week that the US could come to the protesters’ aid, said on Friday he would not meet Pahlavi and was “not sure that it would be appropriate” to support him.
Despite the increased pressure, Iranian Foreign Minister Abbas Araqchi said on Friday the chance of foreign military intervention in Iran was “very low.” He said the foreign minister of Oman, which has often interceded in negotiations between Iran and the West, would visit on Saturday.
UN rights chief Volker Turk said he was “deeply disturbed by reports of violence” and by communications shutdowns.
The Islamic Republic has weathered repeated bouts of major nationwide unrest across the decades, including student protests in 1999, mass demonstrations over a disputed election outcome in 2009, demonstrations over economic hardships in 2019, and the Woman, Life, Freedom protests in 2022.
The 2022 protests, sparked by the killing of a young woman in the custody of Iran‘s Islamic morality police, drew a large variety of people onto the streets, with men and women, old and young, rich and poor.
They were ultimately suppressed, with hundreds of people reported killed and thousands imprisoned, but authorities also subsequently ceded some ground with women now routinely disobeying public dress codes.
