The only items I carry around with me almost always are my metallic cigarette case "wallet", Underwater Kinetics 2xAAA flashlight (which I use as a key ring) and my cell phone (Nokia N-Gage). They are all a bit bulky, but I've grown fond of them over time.
Anyway, I was thinking that maybe there is some unused air space in the flashlight that could be used to store some miniaturized survival gear. The flashlight indeed has two empty spaces between the batteries that could probably fit:
- Two stormproof matchsticks and a striking surface or a custom made miniature magnesium flint wand
- A needle and some thread would probably fit in as well.
It's a watertight case by itself so the matchsticks would stay dry.
I wonder if you could fit a Micropur tablet or two in the bezel part?
N-Gage and many other cell phones have some empty space inside their cases. I opened up the case and noticed that the biggest continuous space is above the memory card. It's about the size of a stamp and perhaps a few millimeters high.
What would be the most useful small item that you could fit in such a minimal space? A Band aid? A Fishing hook?