A tennis ball in the dryer...
A tennis ball in the dryer will improve the "fluffiness" of your towels. Skewer one onto the end of a broomstick, and you've got the perfect thing for cleaning scuff marks from the floor. If you slice one open, it can be a great grip for opening stubborn jar lids. You can sharpen your scissors by cutting through a few thicknesses of aluminum foil. You can make an economical ice pack by placing water and a disposable diaper in a ziploc bag and putting it in the freezer. You can put all kinds of things to uses they were not designed for. God made you for a purpose. God designed you to love him.