I try to listen to podcasts whenever I'm in transit or doing chores. They're a great way to learn and keep on top of things going on in the world.

I make sure I listen to each of these if there is ever an episode available:

On Deck
I'll listen to these next, and try to keep up-to-date on them.

Backup Tier
I don't keep up with these, but if I have nothing else I'll try to churn through them:

I use the iPhone app PocketCasts to listen and queue things for me.