I sometimes take Uber/Lyft or UberPool/LyftLine to and from work, which costs me ~$4-7 without surge pricing. Most of the time I walk. I probably spend ~$40/mon

I sometimes take Uber/Lyft or UberPool/LyftLine to and from work, which costs me ~$4-7 without surge pricing. Most of the time I walk. I probably spend ~$40/month on commute to work via Uber/Lyft, walking the rest. That said, I'm not suggesting that as a commute option. I'm suggesting it as an option when you have to get to and from meetings at various startup offices / cafes. For commuting, most people have a good option that's cheaper than that. If you live on the other side of the city, driving or riding a scooter is not a bad option. If you live a little closer, which is likely, many people bike. There are also quite a few bus lines. There are also privately run commuter busses that connect the Marina / North Beach with downtown.