AudioBooks- On the same theme as podcasts, audiobooks give you a chance to escape the scenario you are in every morning. For your commute, try listening to your favorite book, or take advice from a self-help motivator. These audio files can also get you through that text book you need to finish. Audiobooks increase your retention levels and increase your learning speeds.
Both Audiobooks and podcasts have topics of productivity. These podcasts provide tips and tools to be more productive at work.
Do Nothing- A completely different option is to cancel everything out. If you are driving to work, turn your radio off, and just relax. Put on your noise cancelling headphones on the bus and listen to absolutely nothing. Blocking out the meaningless chatter and background noise can leave you worry free and ready to go when you arrive to work.