Put a watchband compass on your watch, and if possible put a fullsized compass in your pack/BOB/whatever. The watchband unit is great for quick orientation and as a backup for the fullsize. The watchband unit is also available everyday, even if I'm not on the trail. My favorite watchband compass is the Brunton 9068, mainly because 1) it's easy to read when moving and 2) the mount completely encircles the watchband, unlike the Suunto model.



My favorite source for the 9068 (and lots of other good stuff) is BestGlide who sells it for only $4.