Bib shorts and cycling jerseys if I'm not done riding for the day. I don't care that somebody else thinks I'm nuts because I rode a bike here, why should I care what they think of my clothes?

After I'm done, though, I'll get out of those and clean up as well and quickly as possible. Then into a t-shirt (some sort of poly), and baggy shorts or convertible nylon pant. But it's still for my own comfort and convenience.