Relatively crummy months have settle in for Oregon, so I'm prepping myself for the winter's commute. In the past I've worked places where I can shower before work starts so I'm mildly presentable. New town, new job/school and I'm biking in four miles. I bought fenders (Not big 'uns, so my feet get wet) and I have a waterproof jacket and messenger bag. Any suggestions for further weather-proofing? What does everyone use for the winter if they don't have the option of changing at work?