Pro cleaners reveal the simple, streak‑free method for washing windows—and the common mistakes that make them look worse.

I don’t do windows. That’s what went through my mind when I was asked to test two magnetic window cleaners. But then I got curious. Are these a good solution for cleaning the outside of windows that ...

You might wonder whether glass cleaner without ammonia is really as effective for achieving a streak-free shine. Luckily, the answer is yes. For years, ammonia-based glass cleaners such as Windex® ...