If you use smart quotes, and noticed that WORD often breaks between the quotation mark and the first or last word, I finally learned how to fix it. It requires adding a "zero width non-breaking space" (you can enter it using "Search and Replace advanced" entering "^Y").
One note, I'd restrict it to print books only, as certain versions of Amazon (mobi7) won't accept it, though if anyone's interested in the code to fix it, you can find it here: avoiding awkward breaking punctuation in ebooks.
