My dad just called to compliment me on my daughter's behavior!
She has been staying with her other grandparents (both sets live in Houston, I live in Austin) for a week (they take both kids for 2 weeks each year -- I am so lucky

). When I wrote the original post on this thread he was giving me the advice that I need to spank her more because she was behaving so badly, and just now he called to say that she has just been a delight while she has been down there and complimenting me on turning her behavior around.
I don't know if I can take all the credit -- her Grammy is definitely very good with her -- but I had also noticed improvement even before they went down to visit, and this call gave me a nice confirmation that others are noticing, too.