I often yield to temptation and take the bus. During regular business hours, buses from just up the hill from my place all the way to campus run 10 to the hour. Almost too tempting to resist, but I do try to walk or bike most days. To and from the airport there are trains once an hour, busses every 20 minutes, and a sharecab system that takes you door to door. I choose among those depending on timing and weather. Just now I'm headed all the way from campus to downtown. Not all that far to walk, but would take more time than I want to spend on transport just now. So I'll bus down, then walk home -- after visiting the Medieval Faire and catching a Bobby McFerrin concert in the cathedral, that is.