Originally Posted By: Glock-A-Roo
Learn how lat/lon & UTM coordinates work, carry a good gridded map, and then all you'll really need is point position from your phone's GPS.

That's a really good point. I now have an iPhone app (Tom's GPS) that will display your location using UTM coordinates. Other than saving waypoints (like the location of the car, camp, etc), I primarily use my GPS to give me the UTM coordinates so I can pin-point where I am on my map.
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Victory awaits him who has everything in order — luck, people call it. Defeat is certain for him who has neglected to take the necessary precautions in time; this is called bad luck. Roald Amundsen