I long ago started pretyped or preprinted self-sticking address labels.
I remember being surprised how different some countries mail requirements were. The most jarring was using giant paste jars to affix stamps and seal envelopes because pregummed stamps were useless in very humid environments (my guess that self-sticking stamps were not being made due to cost). Size requirements were also fairly strict, and it was wonderful to discover onion thin airmail paper and envelops. I even gave myself rules as to the minimum number of return and address labels I needed to take with me.
I sent my spouse the link to this story and they thought it was neat too. This reminded me how nice those postcards and letters are. I’ll have to send a letter to them from home later on this week.
