Knife-wielders:

How useful do you find carrying a knife? Anecdotes? I tried carrying a cheap pocket knife a couple times and wasn't into it. I hate having too many things in my pockets, and hardly used it. I use my keys to open boxes at work. I know there are times when it is a lifesaver but I have yet to experience a time when I needed a blade and wasn't able to find/make a suitable one. I have always assumed carrying an expensive knife was some sort of prop for dudes that like to pretend they're super handy and outdoorsy.