Having just completed a triple review of my REMAINDER manuscript, I wanted to share a tip with you all.
When you can’t think of anything else to check your book for in terms of grammar, punctuation, word choice, structure, etc, do one thing more.
Read with an ear toward flow. Anything that interrupts the flow of your reading or pulls you out of the story whether by distracting you with a fancy word or ruining your suspended disbelief, must go.
It can be deleted, it can be replaced, it can simply be reworded, but it has to go. You want your story to flow so smoothly that all your reader complains is that he can’t get anything done because he can’t put it down.

Remember, without sounding too sinister, you want to ensnare your readers in your world so that they will never want to leave.