Interesting as I've never thought of actually using gold in a store to buy something and how that would work. I guess they used weights and measures back in biblical times, so perhaps it would go back to something like that, but I get the idea of having a little card or something with a fleck and the amount written on it. That would be one way to do it. Having "cash, precious metals, and some crypto" does sound like the way to go and it is definitely part of our plan as well...even though Panama is now phasing out the Martinelli ($1 Panamanian) coin because they realized it was too easy to counterfeit.