So, my new (used) car has it and my old car had it too. When the wipers wipe, a fog appears and then fairly quickly disappears again. Conventional washing with the blue stuff at the gas station doesn't do anything about it. It's quite annoying, especially at night. The fog is there basically the entire time when the wipers are on high, and the defrosters don't do anything because its not condensation. I hear Bon Ami is a good solution for stuff on windows that doesn't come off with windex... anyone have any experience with it? Do I need to apply anything on the windows afterwards? Any tips for not getting that shit all over everything else on my car?