I was just thinking about this today.
I used to carry a buck crosslock, but lost it somewhere. Probably at a customers house, using it for something it wasn't designed to do

. Lately I've been carrying a cheap winchester $5 knife I bought down at the wall mart. I like cheap knifes because I can abuse the blade or loose the damned thing and not feel guilty about it.
I really need to go get me a good carry knife. I'll still keep my cheapos for cutting/stripping wires, cutting boxes, makeshift screwdriver, prybar, or whatever else I abuse it for.
I miss my old buck