Duke graduate student Ken Ilgunas has come up with a plan to make it through school debt free. He plans on living in his 1994 Ford Econoline van. He showers and exercises in the campus gym, and knows where all the 24-hour buildings are so he can keep warm, and connected to the Internet. "I'm rarely in the van. Just to eat and sleep. Generally it's not the most convenient place. The closest bathroom is a quarter-mile away and there's no source of water nearby. But with that said, I live pretty comfortably. I bring a water jug to campus and fill it up," he said.