Also, I totally failed to reflect on how 2008 was a great year for me, writing-wise, because I increased my flexibility so much. Here are my favorite lessons of the year. Feel free to embrace or ignore them as you find it helpful.
1) When critiquing, a big dose of "if it ain't broke, don't fix it" is always advisable. i.e., never tell a writer they're doing it wrong if the wrongness works, or does not hinder the rest of the story. <--also applies to own work.
2) Kill all your precious rule-darlings. And everyone else's.
3) It's perfectly okay to switch person if it will get the story finished and out of you. (See #2) (This is how I'm going to rewrite Brook's book, without going insane--someday.)
4) It's not just about giving yourself permission to write badly. It's also about giving yourself permission to write well. To do rolling revisions if you want. To produce a semi-perfect first draft because rewriting kills you.
5) Your procedure can change with the month, week or day, if it needs to. If today you need the lamp on your right on, and the lamp on your left off, turn the lamps on or off, and write. Tomorrow, you can have the lamps how you want, too. Even if it's both off. Likewise, "I have to write at least a thousand words a day" is great for a week, but next week, maybe it needs to be a hundred.
6) If it's not hard, that doesn't mean you're writing crap, just like when it's hard, it doesn't mean you're writing crap. The hardness has no correlation to the crapness for you, thus far.
I feel like there was more, but those are the big ones that come up when I think about this year. Huge break-throughs, each one of them.
Scary that that's what constitutes a break-through for me, hm?