I worked in city centre bars for 8 years when I was in my 20s and it always amazed me how the xmas spirit had evaporated by new years eve.
It's easily the most violent night of the year for most pubs and clubs.
I stayed in and, shame of shames, I was tucked up in bed by 11.30, absolutely cream crackered form a hard working day.
Cheers
GC