To create your own paper wallet from a normal piece of paper follow these instructions:
One sheet of 8.5 by 11 paper folded, with minimal cutting, and one piece of tape = durable, seamless, useable, write-onable, minimalist wallet.
Step 1: Hamburger fold squared
Step 2: Fold in 1/2 and then crease
Step 5: Tape
NOTE: this step can be done after step 7, it will be harder, but the wallet will lay flatter and be more square.
you can also put a small piece of tape at the top of the diamond (on the 2nd panel down)
as this is now the wallets weakest point
now refold, like in step 2
Step 6: Crease again
Step 7: Zipper Folding
you will lock both ends separately.
starting from the inside, and going to the outside, there will be a flap, then a pocket, then another flap, and another pocket. We'll call these 1,2,3,4 respectively. Fold the inner flap (3) into the inner pocket (2), then fold the outer flap (1) over 2 and 3, and into the outer pocket (4).
do the same to the other end.
i would suggest taping flap 3 inside the pocket to hold the wallet together better.
Step 8: Wow, you're done already!
the outside (edge) credit card slot has a flap you tucked in. unfold this flap, put cards in, refold flap, and they should be locked in, you can now put another card in this pocket.
this wallet is very durable due to its construction, but feel free to use tyveck or other materials if you have them.
any questions/improvements/praises PLEASE COMMENT
it should be noted that in the real world i use something like johnsuri's 'anti-wallet'. his idea deserves more credit. i've added an extra clip and some paracord so that i can secure my things to my belt loop, and have my car keys handy. (3rd pic)
takes up less space than a wallet in your front pocket, everything is secure, and since it has my keys too, it's all i have to carry.