I love compasses. I carry about 3 in my EDC pack not including my iPhone apps. 2 are just small button/ watch strap compasses in my EDC box (2 is 1, 1 is none). My primary is a rotation of a GI Lensetic, Silva Ranger or Suunto M3.

On my Ranger I taped a patch of glow in the dark tape under the bezel that holds a charge for quite a while.

If your interested in different compasses, I always go to The Compass Store Mostly because I have always wanted a Gentleman's Compass but every type is well established there.

TIP: On my map cases I sticky back velcro little button compasses to help.

skill set. Y'day I came across a booklet that might help out. It will allow you to work on Land Nav issues without having to leave the house. I haven't bought it yet but I think it has merit. Navigation Challenge book