When I was a kid, my mother would often quip at the sight of large, multistory homes: “Yeah, but who’s going to clean all those windows?” In her mind, she was probably imagining one person painstakingly cleaning each window the way she did around our home. She would mix 1 gallon of water with 2 tablespoons of white vinegar, fill a spray bottle, squeegee the liquid off each window and wipe the glass dry with newspaper, a process to which she, and subsequently, we , strictly adhered. But does Mother really know best? I thought I’d check with the professionals to find out the best way to clean windows. How Often? To begin, I asked Stephanie Lewis, customer experience manager at The Maids cleaning service, how often windows should be cleaned. “It’s really up to consumers themselves,” she says. “Some people like to clean their windows every week on their own, and others are OK with having a professional come in and clean their windows inside and out, from top to bottom, t...