Figured I'd chime in and say that I'm basically in the same situation. I get to the office somewhere between 10 and 10:30 and leave somewhere between 4:30 and

Figured I'd chime in and say that I'm basically in the same situation. I get to the office somewhere between 10 and 10:30 and leave somewhere between 4:30 and 5, with a generous lunch in the middle. My mantra is "Do one useful thing a day" Sometimes I get several useful things done, but as long as you get at least one useful thing done every day, it adds up into accomplishing quite a bit. The actual "working hours" part is mainly valuable, in my opinion, for being available for random questions or issues that come up. Basically, when can I reliably get a response from you if I need something.