Oh, that does look nice!
But I discover, on examining my current wallet, that once I've removed a couple of non-essential loyalty cards etc, I still have 17 cards left! That would make this rather an expensive (and I suspect bulky) option.
Only four of these are anything to do with payment - the others are keycards for doors, National Trust and English Heritage memberships, organ donor cards, etc. I must find a good system for storing that many cards! Recommendations welcome!