Campers and hikers know that you won't be able to do much with a map without a pocket compass. For centuries, people have used pocket compasses to show them where they are going and to bring them safely home. These handy little gadgets don't need batteries or electricity. They work by aligning your map with the compass. This way, you'll always know which direction you are going. Most compasses are all the same, so a cheap pocket compass is all you need to get the job done. Make certain that you have one in your backpack before your next hike.