This snow makes a lot of crap build up on your bike. The problem is that road grit and filth kind of freeze on your bike and get tracked right into the building (we don't have any outdoor parking to lock a bike to). That's the kind of thing that makes the facilities director get mad at you.
Here's how I deal with it. I just park the bike right in the shower and let it melt off. The nasty stuff heads right down the drain and no one knows the difference. It's an easy solution for a short bike. I've got to get a little more creative with a towel with the Xtracycle. It's hard to stand it up in that little shower.
Winter riding brings on a whole lot of opportunities to get innovative. It's not just layers of clothes. But it's all fun.