I have noticed over the past several years that my wallet was no longer a wallet but just a credit card holder, and would be better replaced by a lean holder which just held credit cards/drivers license in place rather than a bulky leather pouch for lots of stuff I never used.
I switched to using a binder clip for a while, but this wasn't very classy and rubbed on the metallic strips.
I was curious--is there a knot/set of knots that you could propose that would hold credit cards with some small parachord, and allow for taking them out periodically from one end without unbundling the whole thing?
I know this isn't a normal use for knots and rope, just curious what comes to your mind. Of what I saw in Asley, #2086 seemed perhaps the closest to something that might work.