6: Create off-site storage
"To stay clutter-free, only keep clothes in your closet that you're wearing now," says Joe Lupo, co-author of Nothing to Wear? A 5-Step Cure for the Common Closet. Store everything else, like off-season clothing, special-occasion dresses, and maternity wear, somewhere else. If you live in a small apartment, pack a clear Iris underbed storage container (from $24; stacksandstacks.com) full, then slide it out of sight. Its snap-down buckles will protect your clothing from humidity and dust.