is anyone else bucking the trend and staying in tonight? What's your excuse? Why does It feel so lame to be staying in?

My excuse
+ Ticket for the thing my flatmates are going to is £8, something I really can't afford at the moment.
+ I have about 200 pages of this HUGE textbook to read, reread, understand and know inside out and have loads of catching up to do.
+ I'm fucking exhausted and will probably be having an early night.