Here’s good news to those who get cranky over hairline scratches on their car. There is no need to buy a pricey touch-up paint or even make a trip to the body shop. Just grab a crayon. Wash and dry the affected area then slightly melt the tip of the crayon with a lighter or blow dryer and draw over the scratch several times. The soft wax will dry into a hard, weatherproof filler. And since crayons are available in a wider array of colors that touch-up paint, you’ll easily find the perfect match for your car.