I used to have a kershaw that I carried most of the time, but that was when I had to open tons of boxes at work. And it was kind of nice to have one from time to time. Plus I was 18.
It's a 3 or 4 inch POS I got on super discount from Big 5 a couple years go. I think it said "Winchester" before the name wore off, but I doubt it was related to the rifles since its pretty crappy. I had a nicer Buck but it started to rust within a week and then the handle broke. I find it handy to cut open stuff with, and if I don't have flathead screwdriver, lol.
I used to have nicer pocket knives, but mostly because I worked at a hardware store that sold them.
I don't get people that are all SUPER into knives as weapons. It's like they're trying REAL hard to make knives as cool as guns, lol.