»You can't get there from here

In order to travel 5km in San Francisco, when time is a premium, do you

a) hail a cab
b) walk
c) hop a bus
d) take light rail
e) drive a private car

Well, the answer is (b): walk. Not only are (a) cabs in short supply (and expensive), private cars expensive to own and operate, but I had a trick answer in there: (d). There's no light rail. I hardly call four southern routes and one rustic 9mph shuttle "light rail". To get from my place in the Lower Haight to a soon-to-close cinema in the Richmond, I spent 75 minutes on two buses, during which time I could easily have walked from Point A to Point B.