Need ideas for studying during long commute

[dfrecore]

I have a friend whose husband desperately needs a degree to get out of his current job. His company just got bought, and he is now commuting 3 hours a day, and working evening shifts for about 10 hours. It's a killer. And it's in a dying industry (printing) so he can't find another job easily.

I'm not even certain he would be able to pull this off, but I want to try to help. Obviously SL is not an option for him. Study.com might be, if he could get the info onto his phone and listen in the car.

I know that there are also other options to listen to things like iTunesU while driving. I need to give him very specific ideas for how he can study while driving 90 minutes each way. Not, "well, he could try listening to some history lessons", but serious, specific courses that would be available on iTunesU or something else, and then could correlate to exams (I'm thinking CLEP/DSST but open to other suggestions).

Unfortunately, he does not speak a foreign language (bummer), and I got him to get his JST from 1987-1992, but he only has 9cr that will count as free electives at TESU. Nothing else very useful. He is good at math, so I'm going to have him do ALEKS, and as many math exams as we can cram into the degree plan. But that's not going to be a ton of help with the rest of the stuff he needs.

TIA!