It is funny, but I have been doing custom trim and carpentry work, about 4 days a week for the past 10 years, as well lots of general repairs, and I found that I NEVER had any use for a pocket knife. I use to carry a small Case in my pocket when I started out, and all it ever did was wear a hole in my pocket. My main tool bag is always at hand, and whenever I have to cut anything, I just grab my razor knife. I even tried wearing a Leatherman tool on my belt for awhile, but I found that it is hard as heck to fold out any of the tools, and the tools on the device are totally inferior to anything I have in my tool bag.
When I hunt, I just carry a 5 inch drop point hunting knife in my haversack, and it only comes out if I have to dress a deer. If I go into the deep woods to scout, I always carry a knife on my belt in case of an emergency, but I can't recall ever using it during the last 20 years.
When I was young, I use to like looking at the Gerber survival knives, etc., but now, knives are just irrelevant to me, except at the dinner table.