I listen to a lot of podcasts. I listen to them when I'm doing chores around the house, to ease the monotony of a long drive, and particularly in my tent at night. Just recently I was turned on to The Enormocast. Chris Kalous is the guy behind it. It's funny and a great way to kill some time if you're stuck in a tent, counting squares of ripstop and waiting for good weather. You can subscribe on iTunes.