Back pocket: I carry a normal wallet, credit cards, sams club card, sometimes some case, spare keys.
Front pcket: a second wallet with key holders, house key, wife's car key, stash of cash, toolbox keys, bandages and small compass.
Arc AAA on keychain with my truck key
Cell phone and leatherman and work pager on my belt
Other front pocket: spare battery for cell phone, change purse, 2 AAA Maglite, spare pager battery (crappy work pager eats bateries)
Other back pocket, comb and handercheif.
If I wear cargo pants I will add a pen or pencil and post it notes to write on and will take a couple things out of the other pockets and move them into the cargo pockets.