This is a simple and light wallet for those who need something that easily fits into any pocket. I have used cotton thread to crochet it. It has some advantages over paper wallets, as it is more malleable and more resistant.
In this case I didn’t include any compartment for bills but it could be easily added, or otherwise we could put the bills in one of the card pockets. But this is basically a wallet to carry a couple of cards and some coins (for the coffee machine, for example).