My scalpel blades fit perfectly in those little Listerine Strips Pocket Pak packages. Its just the right size. It will also hold a couple of butterfly closures. You can get them at Walmart with a key ring attatched also.

These pill are still in their foil packaging. They've not been exposed to air.

I'm more concerned about the effect of my body warmth on their shelf-life.

I've never seen them in foil, only in bottles. What brand are they, and where did you get them???

They are Boots-branded Micropur tablets, from a local (UK) chemist. I am fairly sure they are made by Katadyn. ETS shows a similar product in the Water and Food Group page but they are not identical. The ETS ones are in foil but are much bigger than mine. Mine are in strips that look like the ones near the bottom of the Katadyn page. Also, the ETS page says the active ingredient is chlorine dioxide and the Boots ones use silver.

Many thanks...

I found a nice Money Belt at REI while surfing around. It looks like it's good quality.

REI Money Belt