Once in a while, one needs to actually send a physical letter. For those of you for whom this is an unfamiliar exercise, this involves writing or typing (and then printing) the message, addressing an envelope, sealing the envelope, putting a stamp, and then popping it in the mail box.
Do you find that process onerous? Rob Beschizza says that there is a company that will do all that for you for a cost that starts at $1.52 per letter. All you have to do is email them the text of the letter and the address you want it sent to.
This may be the beginning of a new class of service industries for retro services.