When it comes to plumbing mishaps, don't bust a pipe: Fix it yourself and save a bundle. Whether you're redoing the loo or merely replacing a rusted shower head, the stuff you need is sure to be cheaper at Do-It-Ur-Self, which offers used and surplus plumbing and heating supplies at ridiculously low prices. Oh, they have new stuff, too, but where's the fun in that? Wander the aisles and you'll find the kinds of antique fittings they just don't make anymore -- or sell at Home Depot. At Do-It-Ur-Self, you'll never have to wash your money down the drain again.