@Jane 157433 wrote:
In a clean spray bottle, combine three parts plain white vinegar with one part water. Spray the outside of each window you do not want frost forming on. You will need to repeat this every 2 or so weeks, so you can keep your bottle in your trunk so you can spray whenever you need it.
This won’t keep the snow off though!
This works pretty well, I usually use 1 1/2 cups vinegar to 2 1/2 c. water for my vehicles. I keep it in a cheap spray bottle I purchased at the dollar store.
You can also wet a cloth with plain white vinegar and wipe your windshield wiper blades with it to clean the blades themselves.