I am in the exact same line of work as the author. I can't imagine working the way he describes.<p>It's great that he's made this lifestyle work for him, but I'm not convinced I'd like to be one of his clients. A technology company with a developer on staff one day per week? Coordinating a project is difficult enough when everybody is full-time. ("Sure thing, I'll tackle that bug in six days" is not a recipe for a functional sprint.)<p>My solution has been to charge hard at whatever milestone I've committed to, working as a de facto team member, and then taking the next month off. This works well with my lifestyle, since I try to take each project in a new city and I live cheaply.<p>What I would say to the author: you want fulfilling? Participate in the optimistic urgency of a new tech venture fully - then take your time off when you've finished. If you can't afford to spend that much time away from developing your startup, then how can you expect your clients to wait while you take time off from theirs?