The ones I carry all the time are the Native Lightweight CE, the Calypso Jr. LWT PE, and the blue Salsa PE. I use the Salsa all the time as a cook who cooks in front of customers. It's the least threatening knife anybody in The Market owns. I also use the Calypso at work, but it's a bit less friendly-looking. The Native I always keep clipped IWB, and if I draw that, something needs to be torn apart, particularly breaking down cardboard boxes. Rips through that cardboard like ordinary paper.
From time to time I also carry a large folder. I have an Endura Lwt PE clipped in my front pocket right now, but it's never found a real use, and I hope it never does. When dressing up, I carry a full-size Calypso in my sport jacket's inner pocket.
Any one of these is pretty good for everyday use. I'd recommend the Native Lwt PE (or CE if you need it for a hard job), the Calypso Jr. PE if you want a smaller knife, or the Salsa if you need a friendlier-looking knife for working around sheeple.
Wise man say, forgiveness is divine. Remember that when your <img src="http://www.spyderco.com/forum/spyder.gif
" border=0> bites you!