Directly? Lots of stuff, especially at Bitcoin conferences like hardware wallets, drinks, food, jewelry, art, books, VPN, mining equipment, physical coins, shirts, socks and a bunch of other stuff I c...
Bitcoin is a blessing. Paying in bitcoin and even giving up a few % here and there because of that is one of the ways I choose to pass it on. And also by doing it I hope to contribute to the adoption, which I think will pay off long-term.
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