Frugal shoppers know it's often a great cost-saver to buy in bulk. But what if you're also saving money by living tiny? Where do you put all those cans of soup? According to LifeHacker, save what little space you have for things you go through more quickly, like toilet paper. Reserving storage for items you use up quickly is an economically better use of the space and is more convenient. Also, consider splitting up a purchase with a friend.