Here's an ongoing frustration... I'm currently working on a startup while maintaining a day job, which means LOTS of hours. I'm often (usually) working until I go to bed. Now, I'm at my best productivity code-wise when I first start working in the morning (no, not a morning person). So I'd like to get up earlier and put in a couple of hours on the startup in the morning, before I have to go do the dayjob - give my best couple of hours to MY work rather than someone else's work. Working two hours from 6am-8am would be more productive for me than working two hours from 10pm-12am. But when I'm working late at night, it's really hard to let it go and tell myself to pick it up in the morning. Knowing logically that this is true isn't enough. Sigh.