Some households and families pay hundreds or even thousands of dollars a year because of money they miss out on or products they lose. Is your family one of them? You're losing money every time you buy a product you have somewhere but just can't find. You throw away money each time you let a rebate go unclaimed. Every time a gift card expires, that's money someone gave you that disappeared. If you rent a storage unit, you're paying for space to lose stuff you might save money by locating.