A single credit card, for places that have not embraced, but soon will
So do you have a separate card for places that have not embraced and never will?
Here is a (funny) anecdote, a couple years ago I went to a small comic book store with my son. I hardly ever have cash on hand. When we went to checkout I asked the guy if he took credit cards, and he puffed out "not until they outlaw cash!".