No need for an outlet – cutting the cord on your power tools will make tough jobs a cinch and quick jobs even easier. A new breed of miter saws, drills, nail guns, and sanders can complete tasks just as well, if not better than your old-school set until the next recharge. And without all that clutter to trip over, you'll keep your sanity (and your fingers, too).
Craftsman Cordless Miter Saw
It won't muscle through two-by-fours all day, but this saw is ideal for light work like slicing the trim on a window or door. At 16 pounds, it's easy to carry, and its 19.2-volt battery lasts for more than 100 cuts per charge. The included 7¼-inch 24-tooth carbide blade eats through wood but is also fine enough for delicate finish work. [$120; craftsman.com]