Base64 is such a wonderful gift.
Back when the commercial internet was just getting its act together there were companies that would give you free online access on Windows 3.1 machines in exchange for displaying ads in the e-mail client. (I think one was called Juno.)
The hitch was that you could only use e-mail. No web surfing. No downloading files. No fun stuff.
But that's OK, since there were usenet- and FTP-to-email gateways that you could ping and would happily return lists of files and messages. And if you sent another mail would happily send you base64-encoded versions of those binaries that you could decode on your machine.
The free e-mail service became slow-motion file sharing. But that was OK because you'd set it up before you went to bed and it would run overnight.
Thank you, whomever came up with base64.