Many shoppers know that January is the best time to pick up discounted Christmas decorations, new TVs, or on-sale towels and linens. You may be tempted to stock up, but be judicious in your purchases. If you're already testing the limits of your home storage, adopt a one out, one in policy. When buying new decor, identify an old or outworn item for it to replace. You'll have less to organize and keep clean.