My PC Kit:

Spyderco Endura4 FFG
Leatherman Serac S3 LED flashlight
Bic mini-lighter (I do not smoke - this is for fire)
* Ruger LCP with spare mag

* The Ruger LCP is my bottom rung / deep concealment handgun. Whenever possible, I carry a true fighting handgun (Glock or HK in 9mm, 40SW, 45Acp, 10mm) with at least two spare magazines.

This is an incredibly basic "survival kit" geared toward normal life with a tiny degree of "capability" built in. In my day-to-day life the largest danger I face is violent assault, a car accident and nasty weather. The gear I've selected addresses these issues:

KNIFE = back up defense; seat belt cutter; survival tool.
FLASHLIGHT = defense; signaling; power outages; etc.
LIGHTER = fire. We need fire to stay alive (warmth; boil water; make a torch; defend against animals; etc).
GUN = defense.

ETA: My PC kit is extremely light and not cumbersome. I would prefer a "stronger" folding knife, but I've yet to find a top quality slicer as light as the FRN Spydercos. This kit has to disappear in dress trousers.