When washing, only use clean water. Okay, so everyone starts off with clean water, but when doing the exterior you need to change the water regular. If you don’t change your water it may contain grit particles, and they will mark your glass. Ever seen all those surface scratches and scores when the sun hits? Well, this is because folks are wiping away old dirty water from their glass. Keeping your water fresh and clean is the key here.

There are many excellent products for making your washed windows sparkle nowadays and most of them are pretty good. It’s important to find one you like, such as Windowlean, and stick with it. Some of the cheaper products will leave smears and no matter how many times you wipe, and you’ll just end up pushing the smears around. I often finish with a spray mist so that I can get into the corners. Remember that the corners harbor most dirt particles so be careful with scratches here.

If you can’t seem to rid the smears and your windows look constantly greasy, apply a little vinegar either to your water or directly onto the glass. I usually have a vinegar water mix in a spray bottle and dry it off using the newspaper technique. Greasy looking windows are usually a result of neglect, as glass that is cleaned regularly doesn’t usually have this problem.