It seems like my windows fog instantly when there's no sun on them, had this in the Neon too. Especially driving at night it's annoying going back and forth between foggy inside and condensation outside on the windshield. I see Rain-x has a Fog-x. Has anybody tried this or any similar product on their cars with any success. I actually had some luck with the Armor-all window cleaner but it would only last a few days, but better than windex.