9. Nail polish remover
This works in a pinch if you don't have real nail polish remover in the house. Put some rubbing alcohol onto a cotton ball and rub over the polish. It might take some rubbing, but the polish will come off.
10. Windshield washer fluid
"Combine one quart of rubbing alcohol, one cup water and two tablespoons liquid dishwashing soap or laundry detergent," says Cobb. "This solution should not freeze even at 30 degrees below zero."