I'm considering going 100% cashless.

Has anyone done this successfully?

Principal at Cobalt Ventures. Write @ TheItinerant.io ; BenErsing.com           Host: /venturecapital

That would be quite interesting!

In the US?

Building poolfish.xyz (/poolfish). A calculator for LP providers. Cooking /hotpotato. Built Potion solo to $6k+ MRR and sold for $300k.

Is there some credit card for crypto to fiat that you can use?
Or are you planning on limiting yourself from a lot of places?

That's part of the genesis of this thread. I'm wrestling with how feasible a goal it actually is.