And there you have it! Slim, simple, and comfortably pocketable for easy availability, the impossibly simple origami wallet!(Yup, I'm the weirdo posin...
This is an origami wallet. It's small, sleek and simple AND you can write on it(because it's made of paper). However, it's not very practical for use with actual money; I suggest using it for transportation, business, gift, or any other kind of card. To make one, you need a piece of 9x9 paper and about 2 minutes.
Step 1: Paper Preparation.
If you already have a piece of 9x9 inch paper, then you can skip this. If not, get a regular piece of rectangular paper (preferably rather heavy paper, for durability), fold over the edge(but try not to crease it much) to form a perfect triangle, and trim off the excess(and don't you dare let that extra bit of paper go to waste. Nah-ah! Find a way to use it), leaving a folded over square. Unfold.