A meteorologist from Tennessee named Ken Weathers melted this frost on this windshield in just seconds with a mixture of products you can easily find in your home. 

I'm going to have to give this one a try.

 

It's crazy simple. Mix 2/3 part rubbing alcohol and 1/3 part water together, stick it in a spray bottle and spray it on your windshield. The freezing point of the alcohol, which is much lower than water, will cause the frost to just melt away. It seems to work perfectly for him, but this is Maine. A little frost on the windshield is nothing. My guess is it won't do squat for ice, but on those mornings where you just have a thin coating of frost to deal with, this simple solution should to the trick. Keep the bottle in your car because it won't freeze.

Sidenote. A meteorologist named Ken Weathers? Really? I can only assume he sits at the desk with Pat Newser and Lee Sportsman.