And you can pay with cash. I always feel a bit funny dropping $10 cash in the mail with no return address but so far it’s always made it into my account.
No, I use SnailOnionCoin. It sends my cash through a number of intermediaries, each just getting a .onion adress explaining where to send it next. Every hop is also switched between cash in snailmail, western union and bitcoin to make it harder to trace the links and make sure that physical traces (like fingerprints) or legal traces (like the postal system or traditional financial transfers) don't make it to the final recipient.
Not only your fingerprints, but the fingerprints of the dozens of people who handled the envelope and cash. Who knows what they could do with so much information?