Utili-Key
Your toolbox will feel a lot lighter after you dump excess gear in favor of the Swiss Tech Utili-Key ($8). This lightweight, key-size, six-in-one tool sports a straight knife blade and a serrated cutting surface, a micro-sized screwdriver, a Phillips screwdriver, an eyeglass screwdriver, and a bottle opener. It has a quick-release design for snapping onto a key ring so it's ready to go when you are.