If you want to educate yourself more, you could register for some courses on edX.org or coursera.org. Both sites offer downloading of lectures and course materials. I did that for awhile until I got a more reliable 3g connection. I love my train commute and strive to make it at least 30% productive, the other 70% is watching Netflix, other just general web surfing, sometimes it approaches 50%. Either way I enjoy the time to explore new content, whether it be educational or pure entertainment.