I almost never work more than 40 hours a week. I'll do OT for production support in critical instances, but not with any sort of regularity. Or to meed a reasonably set deadline that ended up being just a little too short. But I will not work OT to meet an agressive deadline- to me that's just mismanagement. My work is much poorer when I start working OT (except, of course, when you're on a roll and elect to work extra hours because you just don't feel like stopping), so I figure I do everyone a favor by keeping myself to 40 hours. Some see that as a poor work ethic. I see it as a good, human, life balancing ethic.