Same here usually.... though last Friday went out drinking, but it messed up my Saturday since I was just too tired to do any constructive work.
I tend to work my ass off and don't got out that much anymore.. Once or twice a month max I'll go out and have a drink.
I make up for it every few months and take a week or two break usually in thailand, where I spend my time usually relaxing in the day and partying hard at night.
Works for me....
