The 3 bus lines that define San Francisco

I moved to San Francisco about three and a half years ago, from the almost completely car-dependent state of Florida. In that time, I have not owned a car and have driven sparingly, basically only when I leave town to go on vacation. We have a transit system here which is … okay, all things considered. Yes, I know it’s far superior to anything any city Florida could ever put together, but on the other hand, a city like San Francisco needs more than that, and more than this; and yes, I am well...