In other words, don't insult your readership's intelligence with spelling errors and atrocious grammar, because we are not a bunch of ninny morons who failed the fifth grade. Yes, the spell checker is your friend. In some ways this point belongs under point number eight because I'm convinced that if authors took more time to reread their work, consistency wouldn't be an issue. At one point toward the end of the read, Sabre becomes ill and the hero is at her bedside wishing her well. Nevertheless, the error is a significant one because it detracts from an emotional moment between Sabre and her husband that otherwise would have been quite powerful.
Sex is red hot and wonderful.
Don't color it purple. True, not only must you satisfy your potential readers, but you must also satisfy your publisher. The best advice I can give an aspiring author is to pen your sex scenes without the prose and let your editor ax it later. Don't, however, give up the ship without a fight. Argue with your editor that readers want to read about normal sex and normally-named body parts.