It's a strange thing. When I was younger, I would spend all week looking forward to going out on Friday, spend hours on the phone sorting out plans and would feel a miserable loser on the rare occasions there was nothing going on and I had to stay in. These days, I'm often tempted to find an excuse not to go out even when I do have plans (I never do, of course, but I am tempted). I'm not sure when this change took place.