I've been thinking about this for awhile now, and I think I carry too much "stuff", but it seems as soon as I leave something behind I need it...
Front Right pocket: Car key, money clip with cash, microfiber cloth for my glasses.
Rear Right pocket: empty
Rear Left pocket: wallet, Quark AA2 light
Front Right pocket: lip balm, house keys, a Case Logic neoprene case for two flash drives that contains my nail clippers and tweezers.
On my belt: ~9:00 my phone in a Maxpedition CP-M.
I've thought about carrying my phone and / or a pocket pistol in my left front, but I'm not sure where I'd put my other stuff.