When you buy a home and move in with some existing furniture while purchasing new pieces to fill in the space, you may go several years without making any additional change. While you may have functional furniture that meets your family's needs, you may want to buy new furniture that not only gives your home a new look, but that also brings new or improved functionality as well. If you are only planning to buy furniture with a money-back guarantee, you should think about renting a storage unit before you start making furniture purchases.