I have a variety of bose knives I rotate around for daily use. On workdays, I carry a single or multiblade, 3.5 or smaller in my left front pocket, away from my keys. I'm still not that good about keeping my knife in its own pocket, so I often carry the knife in a Den's of England leather pouch so that it wont have to compete with change and keys. On weekends I also carry a 4.5 Bose backpocket knife. If I'm coaching baseball, where I'm never sure if some kid is going to nail me with a bat or a ball, I change to a cheap rubber watch, and I only carry micarta handled knives.