If you’ve ever gotten in your car with a small layer of ice, then you probably know that you can spritz some windshield washer fluid onto the windshield, and the ice begins to melt.
Well, this is because windshield washer fluid has methanol in it and won’t freeze until it reaches -20°F.
However, you will not want to use it in large quantities, especially around flowers, plants, water supplies, etc.