I’ve been doing the Caltrain-BART thing pretty regularly now. I take the 5:20 BART in the evening, which gives me a 15+ minute layover in Millbrae, during which I walk up and down the stairs to the concourse to get some exercise. I could take the 5:35 BART train, but I’m always worried that if BART is delayed by over 5 minutes, I’ll miss my Baby Bullet connection at Millbrae, which means I’d get home really, really late. The other good thing is that T also rides the same Baby Bullet home from SF, so I get to hang out with her for a bit on the train.
I spend almost 3 hours on the train each day, but it gives me time to read the New York Times cover to cover.