If you prefer to take care of things on your own, the idea of being left helpless is likely one of sheer terror. While it’s good practice to think of what-if scenarios, you don’t want to go too far overboard preparing for every possible thing you can think of. Using your logical mind, you should take in your typical surroundings, and think of what tools you might need so you can make sure you always have those specific tools at the ready.
If you happen to find yourself in a situation that often requires wire strippers, wrenches, a screwdriver head, cord, a knife, inclinometer, and a bottle opener, then it might be in your interests to get the M48 Kommando Pocket Rescue Tool. This has 4 different sized wire strippers, 4 ASE wrenches, and the other aforementioned tools. While it will fit in your wallet, the sharp edges are likely better kept in the waterproof carrying case that comes with it.
If you are in such a spot that you need more help than this multi-tool, the Morse code for SOS and HELP have been laser etched onto the top. This is an $11 purchase that will hopefully never see use out of desperation. However, it would be a nice way to stop yourself from having to run to the tool box for wire strippers and wrenches on occasion (and opening bottled beverages when the job is done).
Available for purchase on unitedcutlery