Just an idea off the top of my head; it may not be to your preference - but if you are one of the many people who sends loads of Christmas cards and takes the time to compose something worthwhile in each of them, you might like to take a bit of time to write one brilliant message and encourage everyone you know to do the same. That way, you capitalise on economies of scale by producing one excellent card and then copying it for all your friends and colleagues, and you greatly reduce the average resources consumed per card, while still increasing the average quality of card you give to each person. If everyone else signs up too then you greatly increase the quality of cards you receive too because each one given to you will have the best message the sender could come up with.
