>> A pretty good quality of life metric is how many Christmas cards you get (and send). Funny you would say that. When I first got married my wife was in an absolute stress about making sure we sent Christmas cards to everybody who had come to our wedding. The fact I didn't have addresses for some of them was a source of much frustration.

After rationalising our card list to the 5 to 10 people we are actually friends with, Christmas is a lot more calm. I'm sure some of the people we used to send cards to are a lot happier too, as they now no longer feel obligated to send us cards in return.\

I suppose my point is that in my experience most people only have 10 to 20 people (if that) they would consider friends. It's only since Facebook and the like that we have considered great numbers of followers our "friends".