Spare change is the most useful thing ever created. As a college student, I am an expert on this. Spare change can feed you (from vending machines), clothe you (at Goodwill), bring you even more money (if you use it to scratch off the silver stuff on certain lottery tickets), open doors (if you use a dime as a screwdriver to remove the hinges), and bring you luck (if you pick up a penny on the sidewalk). I've even used the spare change I collect to pay bills and buy books. So stop throwing your pennies away, gather all the change you can find in your car, house, and pockets, and see what you can buy. You might be surprised.