I think it's really neat to read about people in the exchanges getting postcards from their partners. When I used to chat on IRC a LONG time ago a few of my friends from different parts of the world sent me postcards that I put up on my bulletin board beside the computer so I could look at them when I spoke with whoever sent them. I still have them up too. :o)
Eventually I will put them into a photo album, and if I have a picture of the person who sent the card, their picture will go next to the card.
Gem