Originally Posted By: ducktapeguy
Headlamp? If you plan on doing anything after the sun goes down, you'll want one.


That was my first thought. I'd dump the Surefire and go with a good headlamp and maybe the Photon or Arc AAA (but not both) as a backup.

Map of area
GPS
UTM grid
Eating gear - spoon, cup
Bandana (towel, filter, sponge, fly swatter, ...)
Hat w/ brim

I'm not a fan of 100% DEET. DEET is bad enough, but the 100% stuff is real nasty. Keep it away from your compasses! I like the stuff 3M has out now. I also tried the newer Cutter Advanced non-DEET stuff last summer, but have yet to really get sold on it - the jury is still out on that.