Here are a couple of multi-tools that can help you get unstuck no matter where you are. They offer over 18 functions between them. The Dagger can serve as a bottle opener, nail puller, flat screw driver, hex wrench, scraper, and knotless gear. You can also attach it to your keyring. The Cloak has a ruler, 3″ scraper, various hex wrenches, flat screw drivers, a bottle opener, and a knotless gear.
Both these multitools look attractive and tough. You can pick these titanium tools on Kickstarter.