No. 613 Card Sheath
"One of my favorite breakfast joints does not accept credit cards so I still need to make sure I have some cash on me at all times but use it rarely. Also, I have about six or seven credit/ATM cards I carry around but only use one or two of them all the time. So I designed a wallet that could hold several bills and a pile of credit cards but keeps the cards or two I use most front and center. I carry this wallet in one pocket and my iPhone in the other. It's all about simplicity."
https://colsenkeane.com/products/no-6...