I'm looking for a spray to make myself for windshields to stop the fogging on the inside of car. Thought I'd seen it once, but can't find it now. Thanks.
As for fog INSIDE of windows, I have done this in my bathroom and it keeps the mirrors fog-free - wipe shaving cream on the mirror, and then wipe off - DO NOT RINSE. For some reason, the residue left keeps fog away. You have to repeat the applciaiton from time to time.
02/07/2001
I got this off of Back to Basics: Windshield Wiper Frost Free Fluid Mix 3 parts vinegar to 1 part water and coat the car windows with this solution. This vinegar and water combination will keep windshields ice and frost-free.