Maggot and miniMe you are both on the right track. What I am trying to design is a Wallet Survival Kit. miniMe as you can see from the Brunton cards the whole pack is talkes up the space of a single credit card. So far I have come up with 25 catagories and 8 card sixe equipment cards. I can usually stuff 2 or 3 cards in one slot. So about 8 slots on each side plus a bill area and a change type pouch for other additions.

Yes this would be a rather fat wallet but doable. The Idea is balance. Most that carry a wallet in one hip pocket sit crooked. This woul even out the arangement. If printed on paper like the Bill Van's one [that's 5 cards] the waterproofed instead of laminated even 25 would peobably be less than 1/2 inch thick.

But primarily an exersise to keep thinking.