How does the "drop in any mailbox, return postage guaranteed" thing work
November 23, 2019 8:11 AM Subscribe
I saw an old key ring at a garage sale - on the key ring was printed "Drop in any mailbox, return postage guaranteed" and then the address of the association (in this case was a community group, functionally a club). This made me curious - what would happen if I did that today? Could I print that on my key ring and add my home address and just get billed for the postage if my keys were mailed back to me? Very curious about logistics and how this works from a "how stuff works" perspective.