As the winter weather turns to warm spring weather, that means storing our thick, woolen sweaters until next winter. Here's a simple way to protect your sweaters and to reuse something you might have extra of around the house: Store your sweaters inside old pillowcases. The cases will allow the sweaters to breathe while protecting them from the elements and dust. And a bonus tip: Pillowcases can also protect hanging garments. Simply cut a hole in the middle of the closed side and drape it over the hanger.