Usually one, a Case sodbuster, or a Benchmade 943, depending on where I'm going. Sometimes 3, when I'm carrying my Schatt & Morgan medium stockman. I like the idea of having multiple knifes with me, but I can't stand having a lot of stuff in my pockets or on my belt. I try to keep it pretty bare bones..... one knife, 2 keys and a bottle opener on my key ring, and a cell phone. I'm generally always just a minute or so from my car, and I have a Leatherman wave, and a Mora clipper in there if I really need it.