This thread has my creative juices flowing and has got me to working on a personal kit that is both easy to access and sealed.
I'm going to build a slightly bigger version of my 'pocket kit' in a GSI 840 waterproof container (I use the 420 for my pocket kit) and then put that into a multipocket belt pouch (I have one from Kuny's not really doing much ATM) that has some additional items like a knife and/or multipliers, a flashlight, pen or pencil, etc...stuff you might want to get at without disturbing the waterproofiness of the kit. It will be larger than pocket size but it will be small enough to be clipped to ones belt or other piece of gear. Fortunately the Kuny's pouch has a belt clip in addition to horizonal and vertical webbing loops.
I'm going to go back to the beginning and think about the big 10 items one should have and see how many of them I can comfortably fit into this package.
You never know when playing around like this results in improving what you've already got.