I personally believe that people relying on GPS technology is a problem in waiting. When the batteries go dead, or there's equipment problems with the satellites, or one or two get knocked out of orbit by Chinese or Russian missiles (hey, it could happen), there are a lot of people who are going to be up the creek without a paddle (assuming they can FIND the creek).
Give me a lensatic compass and a grid map any day, or at least the knowledge of how to find North, and I will find my way. When I used to play as a Psyop soldier, land navigation was heavily stresssed, and I'm thankful for that.
Clint's landnav course would be a good idea to those directionally challenged souls, and could easily save a life or two.
Also, the European sport of Orienteering would be a good thing to get off the ground here. Beautiful terrain, (mostly) nice people, and a great way to stay in shape.