Having worked around farms as a teen and being a life long hunter/fisherman, I am never without a pocket knife. I carry a Gerber LST lockback fine drop point. When I am hunting, I have my pocket knife and my hunting knife, a larger more expensive Gerber lockback, is in my daypack.
In fact, when I climb out of bed in the morning, I put on my glasses, my pants, then my knife and my "home" key chain go into my left front pocket. Then I put on my hearing devices.
I travel a lot, often by commercial air. I have lost count of the number of knives I have donated to the TSA Christmas Party knife sale fund raisers! LOL! My fault. I know better.
The regional airport in Bloomington, IL is different than any other US airport through which I have traveled. By the security checkpoint on the right side is a stand with padded envelopes. You put your knife in one of the padded envelopes, address it to your home address, put it in the drop box and the AIRPORT pays the postage to mail you knife to you. With family near Bloomington, we have traveled there a lot and I have used this service twice. Kudos to the airport management there in Bloomington, IL!