Not too long ago, I switched out the baseplate Suunto compass in my EDC bag for a Cammega 3H tritium lensatic, along with a protractor. Downside: More weight to carry around. Upside: Most likely Armageddon-proof.
Another summertime EDC gear rotation. It's a little too warm to be carrying much, so the focus this weekend is on lightweight and functional... SureFire Titan AAA, Inka Pen, Exotac Nanostriker, and a Victorinox Pioneer.