Here are some of the items I carry that I consider a must that I haven't seen listed yet:
Duct Tape!
A full size multi-tool.
A medium size poly tarp.
At least 2 liters of drinking water.
A box of cliff bars (instead of the MRE's)
100ft (at least) of 550 cord. (instead of the jute)
Anti-bacterial face\hand wipes.
A small headlamp, in addition to the regular flashlight.
Fatwood, the cotton balls are good for startup, but some fatwood will get you going in wet conditions quickly.
Yup - some of this stuff I always have with me in my edc items or in the car aside from the BOB. I am going to try to get the energy bars and a flat of drinking water (but how long can that stuff remain usable in a car trunk?)
The sensible thing for me would be to ride out an emergency where I work, and I would do so in the event of a bad blizzard or something. In a bigger sort of emergency, I would want to make my way back home - hence my attempt at portability.