Given the growing number of freelance workers in the U.S. (57 million and counting), I'm consistently fascinated by how the relatively untethered keep their productivity high. More specifically, how many hours a day they work, how much coffee they drink, the distractions they let in, and if anyone actually works in their underpants. As someone who's freelanced consistently in between full-time gigs, I know how it all works for me, but given the movement toward remote work, shared workspaces and the ability to rove WiFi to WiFi... I thought it was time to ask: What are the work habits of freelancers, actually?