I've been tweeking my next 2 submissions and you know, I could nickel and dime myself all day. It's good that I'm working on the 2 books simultaneously, because they're related -- one follows the other in the series.
What I'm doing now is the gruntwork: I've got my list of faux pas that I regularly commit and I'm slogging through both ms, checking for those gotchas (too many ellipses, too many dashes, too my 'ly' words ... you get the idea).
This is the unglamorous side of writing, the cleanup. Just like doing the dishes is the unglamorous side of the Thanksgiving feast. They are both tasks to do and the reward is being able to say "DONE!"
I'm almost there. I'm going to do one more review tonight then they are emailed off to my editor. I'm going to take a few days off and just do some promo stuff, relax, read a magazine, then start the next book. I'm already looking forward to it ....