After participating in Rails Rumble a couple of years ago a fun idea I haven't been able to shake is if it'd be possible to work 20 hours a day Saturday and Sunday and then take M-F off (plus, you'd have less online distractions during your "workweek," since it'd be everyone else's weekend).
M-F off is highly overrated if one's passions involve other people. I have it any time I want. Unless the people important to you also have free time at 2 PM on Tuesday, it turns into lots of fungible book-or-gym time, and the little old ladies at the gym will ask you why you aren't at work.