Actually Frank, that's a good thought, one that I can apply elsewhere, but Sunday night is really no different than Friday or Saturday in that sometimes she drinks a bit too much. The thing we can do differently is for her not to drink. Other than that, we do the same things (Watch a little TV/movie/talk, get the kid's stuff ready for Monday and go to bed) as we do most other nights. It just seems like she's not gotten used to Sunday not being a "free" night like it was in the summer.
I THINK she got the message this weekend and like I said, I REALLY will take to heart your suggestion going forward that I not use "no" and "not", replacing them with more positive suggestions/ideas.
As for replacing her "habit" with something else, she USED to drink tea at night, a habit she's starting to get back to on nights she doesn't have her wine. That is a REALLY promising sign since it's been a LONG time since she's done that, and for me, a sign that she's trying to do something else other than just break the habit. She IS trying to replace it, or rather go back to how she was years ago, something that I think we both know would be healthier for her.