Yes! That works for me too. Sometimes if I have a whole day lined up and think 'Today I will write', it can be the deadliest thing of all. I think snatching little bits of time here and there takes the pressure off and sort of tricks you into the right mind set. I get lots of ideas just when I'm falling asleep - I read something somewhere that your brain is in a really creative state, just at the point where you're nodding off. So I keep a notepad and pen by the bed! Often I get ideas for lines of dialogue or text right at that moment. Sometimes they're shit when you look at them in the morning, but there's usually something you can work with.
Mine is doing okay. I'm about half way now, but it doesn't go smoothly at one speed - I keep hitting patches where I have to stop and spend time thinking it through before I can go forward, which is annoying because just when you're in a nice rhythm, you suddenly grind to a halt. Plus my laptop died last Friday and I've been spending all my time sorting that out, and getting all the stuff off it - big stress