Try as we might, once baby arrives, our space is invaded by all of their necessities. Cribs, baths, swings, and highchair are all space-gobbling pieces that mama's buy to keep their lil ones comfortable and happy. But when not in use, the baby items can be space-eating giants that leave little room for mom and tot to play. Manufacturers have taken note of this phenomenon and are creating more products that collapse for easy storage when not in use. Take a look at seven such pieces designed to give families more space.