Yeah I heard that one before. Another was using a stamp but putting a layer of Elmer’s glue over it, which stopped the cancellation ink from getting on the stamp. The recipient would wash off the glue and re-use the stamp (covering it with more glue the same way) to write back to you. I never tried that myself but I knew people who claimed to have done this in real life, with 1 cent stamps even. Obvs that was from before email and from when out of town (“long distance”) phone calls were quite expensive for the broke nerds I hung with. So they actually wrote to each other with snail mail.
Yeah I heard that one before. Another was using a stamp but putting a layer of Elmer’s glue over it, which stopped the cancellation ink from getting on the stamp. The recipient would wash off the glue and re-use the stamp (covering it with more glue the same way) to write back to you. I never tried that myself but I knew people who claimed to have done this in real life, with 1 cent stamps even. Obvs that was from before email and from when out of town (“long distance”) phone calls were quite expensive for the broke nerds I hung with. So they actually wrote to each other with snail mail.