Tired of streaks and using squeegees on exterior windows? Give this a try! I have been trying to clean windows for a couple of days now. Once "cleaned" and dry, I see the streaks. Are the streaks on the inside or the outside? Better yet, how do I avoid streaks in the first place ?Although I found the cool tip about using the squeegee horizontally on the inside and vertically on the outside to determine where the streaks [...]