DUMBASS version has accessories, including ID badge feature
Simple one-piece: https://www.printables.com/model/33600-credit-card-wallet
Storage for SIM/MicroSD cards: https://www.printables.com/model/246538-minimalistic-card-wallet
Enclosed two-piece: https://www.printables.com/model/244836-parametric-snap-together-credit-card-wallet-v3
Key hub: https://www.printables.com/model/1486968-card-wallet-with-money-clip-and-key-hub
Concealed keys: https://www.thingiverse.com/thing:3230667
Hinged: https://www.thingiverse.com/thing:2819571
Spare key tray only: https://www.thingiverse.com/thing:2992263
virtual cards with identity including email, phone, and encrypted messaging; freemium with limits on number of identities
Skip airport lines for free with this travel hack.
You can join PenFed by being a Red Cross volunteer...
Includes CLEAR Plus refund credit up to $199, which is more than the card's annual fee.
They recommend considering the Amex Platinum card; the SkyMiles Gold card doesn't offer discounted lounge access anymore
https://www.forbes.com/advisor/credit-cards/reviews/delta-skymiles-gold-american-express/
see also:
https://thepointsguy.com/credit-cards/amex-green-loungebuddy/