Every now and again I send out random postcards and little presents to my friends and family. Just a little 'hi' or 'I'm thinking of you'. This is fun to do, makes the receiver smile and me too when they let me know they liked it. So whenever you are in (web)shops that sells cards, buy a bunch of general (post)cards and send them sometimes, just because.
Most of the cards here in the picture are available in the Snailmail Shop.