I try to not carry too much either. I have two wallets, one is the normal wallet and one is a key wallet, it has my wife's car keys and keys to my shed and tool/gear boxes locked up in the garage, some band aids and spare cash and a small knife. I carry a leatherman wave on my belt behind the company given pager then in my pockets are my cell phone and spare battery, truck keys and Arc AAA and a pen and a few index cards to write notes on if needed.