The reward for this is, of course, that I get to send more cards!
I also addressed Xmas cards and put address labels on them yesterday. Even if I can't send them for another 2 months, my relatives aren't going anywhere (except for one, maybe, so that one didn't get addressed yet). This is going to nag at me like a raspberry seed in my wisdom tooth until I can finally send them.
ETA: And as of today, I have been on Postcrossing for 600 days. 400 cards sent (registered) in 600 days - that's really not bad, is it?
391 received during that time.
About twelve expireds (never received/registered by recipient).