I've been doing the same thing for about 5 years now. I think I've somewhat nailed splitting time between family, friends, employment obligations and having a life. I get by on 6 hours sleep a night (my body is used to that amount now, any more and I feel like crap). I stay up late working on my ideas, get up early working on my ideas, use my laptop on the train commute to work (35 minutes), use any spare time I can during my lunch break to work on my projects.

Support of your spouse is a must, no doubt about that. If your spouse see's all of your time spent on the computer as just that, "being on the computer" forget about having a startup the support isn't there. I'm fortunate enough to have a supportive spouse who understands I want to succeed not only for us, but because I'm tired of making other people money and have untamed entrepreneurial spirit.

Great article.