Any do-it-yourselfer who's spent any amount of time wandering the aisles of Home Depot knows fixer-uppers don't come cheap, even when you're providing all the labor. The big-hearted volunteers at Habitat for Humanity understand that, and they've opened a retail shop to help pass bargains along to the rest of us by selling donated materials. There's no real method to the madness, but packed in the warehouse are stashes of building materials, appliances, furniture, plumbing and electrical supplies, windows, doors, decking, tile and carpet. Wander on in: Not only might you find the stainless-steel stove of your wildest dreams, but you won't be paying for it for the rest of your life.