It's probably not especially cool to admit this, but I love an early night. In winter especially, nothing quite beats peeling back the flannelette sheets with the electric blanket on high and sliding in between them before 9pm. Even on the weekend.
Once upon a grand old time this sort of attitude would have been the stuff of nightmares to me. I remember (only just) when my night didn't even properly start until after 9pm, and then it was definitely always outside the four walls of my own home.
Growing up (and old?) and especially becoming a parent has dramatically changed those habits. Even if I wanted to hit the town, responsibilities at home mean this requires co-ordination and preplanning disproportionate to the benefits gained (a hangover with a toddler not being one of those).
Needless to say, my social life has changed, but recently with baby-related routines no longer as strict as once was necessary I've discovered a whole new way of going out that really does seem to give me the best of both worlds.
Instead of everything starting late (the socialising, the getting to bed, the getting out of it the next day), we are doing the same things but just at an earlier hour.