Interesting topic.
a bit different from you guys, I work in real estates, which doesn't have anything in common with gaming or computer hardwares at all. I work almost 60 hours a week, have a attention hungry girlfriend at home. I too have a tough time managing my game time.
I usually try to get 3~4 hrs of gaming a day. I would come home, eat and supposedly spend quality time with the wife. If the evening goes smoothly I'll get a few hours of gaming while she "socializes" on facebook before bedtime. Boring life...