Anyone who's ever tried their own hand at painting knows what a pain it can be to deal with traditional paint cans. There's the flathead to get them open, the sticks to stir them with, the sloshing down the side, and the unreasonable force needed to close them up. Or you could just slap on a Mixing Mate ($15). This handy tool fits snugly over standard one-quart paint can openings, and features an integrated paddle to mix the paint throughly, an integrated spout that opens with the press of a button, and an integrated grip for easy handling. Even better, it creates a tight, leak-proof seal, so all you need to do is pour out what you need and put the rest back on the shelf.