Webb's includes an aspirin- and ibuprofen-filled pill bottle wrapped in duct tape and medical tape, a couple of gauze pads bound in a rubber band, and a standard gauze roll and a Kerlix gauze roll. It's enough gear to "stop a bleed and wrap it tight with the tape, or wrap a sprain and take the pain meds," he says. Webb packs it all in a Norelco shaver case.
You now have a foolproof method of navigation and enough light. But you need to sleep and eat. The Gerber Bear Grylls Ultimate pro knife with its full tang 4 ¾” high carbon steel blade is just the piece of survival gear you need to help you harvest materials for an emergency shelter, get a fire started, open cans and if necessary, dress wounds and cut bandages.
To me, the best option is to store emergency food. How much? If you have none, store enough for a few days. If you have enough for a few days, get enough for a week. How much you store depends on what time frame you think you're at risk for having to be completely independent. The early settlers of the southwest liked to store enough food for a whole year and still do to this day!