I spend a lot of time on trains now when I commute to NYC because I hate driving there. Combine that with the time I spend on the subway system, it all adds up.
So what do I do with my time on the train?
Sometimes I read a nice book. I've decided to reread the wheel of Time, and it's really interesting to see all the details I missed the first time I read it.
Or I'm on my phone on LinkedIn or rarely Facebook.
Finally I may just be playing a game on my 3DS.
What do you do when you are traveling and not driving?