BEST Way Use a Binder Clip as a Wallet for Cards AND Cash

I've seen far too many people say how great binder clips are as DIY wallets, only to offer no actual system or technique for using your cards and cash at the register to do normal stuff that you have to do with a wallet. So I sat down and played with a binder clip, cash, and cards until I found the best system I could for paying with cash and cards with minimal frustration. I've been using this setup for more than a year now and I'm very happy with it!