Everybody west of here is having a long weekend, so why can't I?

I'm off to Brussels this afternoon, for a longish weekend of friends, mussels, beer, beer, waffles, beer, and maybe some alcohol. In no particular order, really.
Oh and chocolate. How could I forget. Then beer. Well. I'll have to, won't I? Seeing as I'll probably be feeling pangs of acute guilt after the chocolate.
True to form, my bag is not even a concept at this stage.
OK, what do I need? Camera. Money. Coats. Loooots of coats. It's freezing up there.
That shouldn't take too long to pack, should it?