I'm a lighter cacher (only a few a week, i don't go out of town that often -- there's 4 in my town lol).
Everything fits in my Samsonite camera bag with two pockets and a mesh pocket on the front -- its olive drab all around !!
-GPSr, but its nearly always on my desk or in my hand
-Cell phone
-$1 knife from wallyworld
-Altoids tin survival+first aid kit (matches w/ striker, duct tape, bandaids, bacitracin, rubber band, fire starter (vaseline soaked cotton ball), instant energy and focus (lifesaver; pun intended lol), a pin, 3m transpore tape, 3 coffee filters, 10 feet of cotton string, 3 qtips, cold pill, 2 ibuprofen, 2 quarters, 2 tylenol pm's, a P38 can opener, and a few alcohol pads. quite a feat, right?
-2 pairs of AA's (camera and GPSr power)
-camera
-keychain lights are replacing my zipper pulls. they are so handy!
-travel bugs and geocoins collected from other caches (i need some
-35mm film canister with CITO bag and handwritten note(printer is down)
-G2 pen
-shorty handmade bic stic pen
-Benadryl itch stick
Again, all that fits in a camera bag. The same bag I used to throw my camera, AA charger, and rechargeables in and it was "full" at the time.
Two pockets also allow for easy access of EVERYTHING.