From our (20th Anniversary) trip to San Francisco:
We spent three full days riding buses all over the City by the Bay and the weather was sunny and glorious. Those big electric buses can really get up and move when they need to - even climbing hills - so you'd better hold on tight! My only regret was that we didn't get to ride either the streetcars or cable cars. The cable cars were running and, for a limited time, were free! However, service was intermittent. We had planned to ride the streetcars along the waterfront but for some never-explained reason they were replaced by buses that day. Oh well. We'll be back.
It is good to be home and when the un-packing dust settles, I'm getting right back to the flat car project.