Minimalist Wallet, Portrait
Minimalist wallet. Expands to accommodate multiple cards, IDs, cash, etc. Push from one end to raise and fan contents on the other end.
Print sides A and B, or print two of side B if you can sew a band together and want a thinner wallet.
I've been using a PLA version of this daily for the past 6 months and it's still going strong.
See 'Post-Printing' details below.