Also the trick with keeping warm in extreme cold is all about layering, not about expensive specially made thermal wear or using wools/cashmere/angora only but layers.

Also remember that in most cases u will be spending time inside heated spaces so make sure your outer wear is easily removable or you will boil inside your hall/classrooms/lecturehalls with their superduper heaters.

Also remember again that London aint that cold in comparison to the other (generally northern) parts of UK.

Dude, u obviously haven't been to scotland eh?

ALso, when I was in Uni it was during the strange phenomenon of siberian cold stream or some such thing. I lived mainly in Nottingham and the temp over Xmas holidays was minus 10. Inside my heated house. I can't imagine it outside. Blizzard conditions where we got snowed in 3 days. 3 1/2 feet snow,wheehay!