i carry a gerber. not sure what the name of it is, but it works nicely, straight blade that holds an edge well.
when I'm camping I also carry my Leatherman WAVE... great all-around tool. I carried it every day while we were travelling through Central America for a year. My favorite WAVE story:
The cruiser lost it's clutch slave on night on a windy, steep hill in the middle of nowhere. I limped it up and down hills for an hour or two looking for a place to spend the night, but couldn't find anything (it was the day before xmas, all the inns were full... very biblical but my wife wasn't pregnant). We spent the cold night in the truck because I didn't know where we were and didn't want to leave the rig on its own.
Anyhow, at first light I headed down to Cartago (the nearest city) and bought a slave. Very happy with myself, I stopped in to buy a pastry and cup of coffee. A little later, the food, coffee and exercise reminded me of other important morning habits. But the cafe had no bathroom. They pointed me next door the dentist's office that had just opened. By now, I was pretty eager to have a seat...
Nobody was there at the dentist, but the door was open and I could see the bathroom, so just walked in and took care of business.
What I didn't notice is that there was no handle on the inside of the door. None at all. So there I was, unshowered/shaved, in a stinky bathroom in a dentist's office where nobody knew I was actually there, and no way to open the door.
AHA!! Out came the WAVE. Between the thin screwdriver and the pliers and the phillips, I managed to further dismantle the door handle, and get at the latch mechanism from the inside, where I opened it, and let myself out.
The receptionist looked pretty confused but didn't say anything as I walked out.
If I hadn't had the WAVE.... it would have been a pretty lousy start to the day.