A claw hammer is at home in any tool box (as well as in any kitchen or utility drawer). Use it to pound nails into wood with its steel head and remove bent nails (or nails that otherwise need removing) with the notched end. It's a powerful hand tool that comes in a few varieties, including those with curved claws and those with straight (called rip hammers). Straight or curved, any type of claw hammer can drive or remove nails -- and can also be put to use in a few other creative ways. Use your claw hammer to help you dig a hole, tear down drywall, split wood, and even break some ice -- and in a pinch, it could make a pretty good back scratcher [source: The Family Handyman].