I quit carrying a wallet a decade or so ago. Have had several systems of phone cases, money clips, untethered folded bills, etc... For the last couple of years I’ve had this JimmyCase. It’s a strong elastic band on the back of the phone case. It holds quite a few cards but I despise carrying a bunch of shit so mine stays slim. I carry a debit card, one credit card, and my license. Cash gets folded and kept right there with the cards. It’ll easily handle a dozen or so bills along with 7 or 8 cards. The elastic is really heavy duty and stays tight
I keep traditional wallet in my car with a bigger chunk of cash and all the other cards in my life. Gas cards, insurance cards, a couple other credit cards, various membership cards, etc... There’s just no need to have that shit on your person.
I’m also a minimalist with keys. I carry one single key. My car key. Home locks are all keypads and the house key and every other key in my life is on a key ring that stays in the car with the aforementioned wallet. Having all that shit in my pockets would drive me crazy.