I remember hearing something about a bitcoin credit card. Like, one that you pay for everything with fiat on credit, and then you pay off your bill in bitcoin. So you never have to hold fiat if you don't want to.
What's the best/most reliable credit card that does this?
they don't do this anymore, last time i heard about this was some signature campaign that was releasing credit card for bitcoin, maybe was bit-x or something? but it was very expensive and not convenient to use for bitcoin, debit card are much better and you have more choice with them, xapo one is very good for example