I carry a relatively simple one, and use most everything at least weekly. I have used the tweezers and toothpick quite frequently and for their intended purposes. Not that there are not other ways of cleaning your teeth and pulling splinters. I have been carrying the same model (the camper) for more than 20 years and I am quite happy with it.

My BOB has a Swiss Army Locksmith in it. I like having the ability to work wood or metal when needed. The locking blade is nice as well. I have use the metal file quite a bit on smoothing things out and cut a pipe with it (that was NOT easy, but it worked).