Making more space
If you live somewhere with very distinct seasons, then the chance are you have several seasonal wardrobes. These tend to take up quite a lot of space, especially the winter ones. Large fleece winter coats and ski gear can keep a whole closet out of action for 9 months of the year or more.
Head to your local dollar store and pick up some vacuum pack bags. These clever gadgets will reduce the size of your clothes by more than half, meaning you can pack them all into a smaller space until you need them. Simply fill the bag, attach the hole to your vacuum, switch it on, and watch all the air get sucked out, shrinking the package.