My thought exactly. A decade or so ago my back was hurting and I decided to try a different style of wallet. Upgraded to a better one when I realized it works for me.

Even if all I have in it are cards, id, and a single dollar bill, it’s still a wallet, just doesn’t leave me sitting at an angle. Yeah I had a Costanza wallet going on.

Not sure, there seems to be some debate on the subject.

I use one of those minimalist wallets, and I would describe it as a card holder with an elastic for cash.