GPS systems are now used for a number of everyday situations. You will no longer need to worry about paper maps when driving. You will no longer need to worry about getting lost in the woods when you take your family camping. Boaters and fishermen use them to avoid shallow water and no longer need to rely solely on lighthouses, landmarks and guesswork to keep from running aground. And parents can rest easier knowing that if their child gets lost, they will be able to find them.