1-get fenders. 2 would be "get fenders" too if I were feeling that snarky.
When it's warm, I don't mind just riding through the rain, but without fenders it would suck. Riding in the rain is just getting wet, riding in the rain without fenders is eating mud and coming into the house and making a mess.
When it's cold, I wear a vented rain jacket from bicycleclothing.com, which was a very good investment.
As far as wet clothing, I wring out my (poly) shirt and stick it on top of my monitor, it's dry in 2 hours. Then I stick my shorts up there. I'm in good shape by the time I need to head home. This is one of the reasons I keep declining the "upgrade" to an LCD monitor
