It's better to play it safe and have your ID on you when you're out for a bike, hike, or run. But who wants to carry their driver's license when not operating a car? The Road ID ($20 to $30) feels like a lightweight watch, but acts like a guardian angel. The small metal surface contains your name, emergency contact information, and a mantra to keep you going. If you're ever in an accident and knocked unconscious the Road ID speaks for you.