I said, things, “you may not have thought of!” LOL
A metal coffee can. Use it to store small stuff and when camped use it to boil water. Ever try to melt snow or ice without a metal pot? How about boiling water from a creek to avoid the mountain runs? A cooffe can is cheap now, what would you pay to have one in a survival situation? I’ve melted snow to boiling water and used it make a stew out of what I found.
Aluminum foil, try cooking a fish with the old stick basket trick, too well done and it will fall through, solution Aluminum foil. Also can relect sunlight like a mirror and if you have to hike through snow, wrap your feet with it and it will relect your body heat back.
A knife sharpener. Dull knives suck.
I like a thing called a hatch. It’s just an ax/hammer head with a threaded center where you can screw in a branch or root to make an ax. The hatch will mount on your belt and you’ll forget it’s there until you need it. The ax end is also a wedge for splitting wood, you can hit the hammer end with a rock and get into the dry unfrozen inners of a piece of wood to get the fire started. I found a nail in a piece of drift wood during a survival exercise and used it as a wedge to spread the end of the wood treaded into the Hatch so it wouldn’t spread. A few nails are now in my survival pack.
Oh yeah you might run out of matches so carry a flint type fire starter too. A few sticks of fire starter are helpfull as dry tinder can be a problem to find. Best use of a field guide to survial might be burning a few pages to start a fire.
30 gallon plastic garbage bag can be used as an emergency rain coat, to store water, etc.
Role of duct tape.
A roll of red or yellow ribbion is good for marking trails if you are going to be moving around the campsite so you don’t get lost.
With electonics in vogue now a cell phone or GPS are great to have. A small hand crank charger is light and worth it’s weight in gold. Get one with a light on it too. They sell emergency radios with all that built in.