I've said it before and I'll say it again: If you don't know how to use a map and compass, learn. Too many people rely on GPS nowadays and if things fall apart, the military will more than likely shut down GPS for civilians. Remember, they own those fucking satellites.
The government giveth and the government taketh away.
It's not that difficult to learn to triangulate your position and to shoot an azimuth/back azimuth to get to where you need to be. There's several good websites that'll teach you how and then all you need is a little open country to practice in. After you get confident, move into the woods. There's even orienteering clubs that you can join - learn something and get some exercise at the same time although they tend to freak out when you show up with your web gear and a rifle slung across your back. Just sayin'......
The equipment is cheap - a lensatic compass, a map and a piece of clothesline for a pace cord. You can buy everything you need for under 50 bucks.