FOr a long time, I kept my keys in my pants pocket. However, I've simply ran out of pocket space. Wallet in RF, cell in LF, card key for work in LR, RR either empty of a thin knife clipped on depending on circumstances and pants. I don't want to carry multiple things in one pocket, but neither do I want to leave my keys danglin' and janglin' in the breeze on a belt clip. What I'm considering, is a small carabiner of some type with a short length of cable that allow the key ring to be clipped to a belt loop and hang into the pocket. Admittedly it'd get in the way of drawing either the phone or wallet, but if the length was right I think it might work out ok. Any other ideas? How do you carry your keys?