uggs
Actually, ugg boots are meant to be worn after surfing (hence they're austailian origins- how often do aussies have snow snorms)...and maybe they are practical there, but they're still ugly and make people's feet sweaty and smelly. Why.. people why???
Situation A: It's 20 degrees and snowing (UGG BOOTS are not waterproof..wear them in the snow and you've ruined them..unless you waterproof them with a cream ahead of time) 

Situation B: It's 90 degrees out, your feet are sweaty and smelly..and you do not..by any means look cute. You look like an eskimo on vacation in LA.