Well, I'll usually carry my Leatherman Super Tool in a combo sheath with a mini-maglite on my right hip, an everyday, cheap loaner pocketknife in a belt sheath on my left hip, my Laguiole pocket knife in my back left pocket, and my Endura in my right front pocket (or tucked into my waistband, depending on the surroundings). Another favorite I've found is to carry the Endura just below my right kidney, clipped inside the waistband of my jeans. Some makers even have a beltloop right about there, which will keep the thing from scooting towards my spine when I get active. When I carry a fixed blade, it generally depends on the situation, but my favorites are wearing it in a cross-draw sheath on my left hip, or in a horizontal sheath, drawing to the right, in the small of my back. Both of these are generally pretty comfy, and perfectly safe, if you have a secured sheath. They're also nice because (and this could be 'cause a got a big ole' butt) there's no knife sticking out to catch on stuff...you just have to be aware of how you move. Well, hope that not TMI!
It's the SUSPENSE that kills me! --Bugs Bunny