I'm with David on the sending and receiving prints from faraway places. It's part of the appeal. No themes please. I think alot of people have their own "themes" going on already. Just my 2cents.
Yes, it's a bit of a financial burden to send out all the postcards but......it's so much fun. I think I'll let go of bugging people that don't send their postcards.(It will be hard but I will try!) If you can't send, then don't sign up!!!!!!! I'm like you Art, I expect people to honour their committments, but on the other hand I do understand when things happen and you can't participate.
Staggering the exchanges seems like a good idea.