“I use Dr. Bronner’s Sal Suds to clean my windows; it’s super concentrated, so you only need about a half a teaspoon in a quart of water. Spray the window with the solution and wash the window using a huck towel,” says Batista. After that, spray again and use a squeegee to from top to bottom. Once all the dirt is off, you can spray with cleaner. Additionally, you want to wash from “top to bottom in a zigzag motion,” she says. Then, “left to right and back again.” And lastly, it’s best to wash your windows on a cool, cloudy day, Batista notes. That way, your cleaner doesn’t dry off before you have a chance to wipe everything.