+1nuparadigm wrote:What works for me is a Swiss Army pen knife.
It can go with me everywhere*, and cuts anything that I need to cut -- including throats, if it came to that. Plus, it's non-threatening.
When I was in the Army, I carried three knives: the SA pen knife in a pocket, and at 4:30 I had a larger SA ("Camper", I think) and a Buck Lite locking folder, both in belt pouches. When wearing web gear I had a fixed blade on my suspenders.
*"Everywhere" obviously doesn't include through a TSA checkpoint, but I have sailed right on in through the courthouse metal detectors with it in my pocket.