Several years ago, I used a similar service at the end of a cycling trip around Sicily: I sent a postcard to the home of the friend I was traveling with, showing him on his bike on a beach with volcano Etna in the background. He received the postcard the day after he returned home, and it was a big surprise.
Do it, print your photos, and give them as gifts.
PS: Bonus point, with Bitcoin you don't dox yourself, just your friends' addresses!
View quoted note →