If you get the niggling feeling that there's something wrong with something you wrote, but you have no idea what it is, read your work aloud and you'll discover the solution.
Reading your work aloud is the best first step in rewriting. Researchers say that sound stimulates the brain into attention. This is important, because when you tinker with your writing there's a limit. After a while, you lose perspective. Wait a day, and then reread your work, aloud.
Babies react powerfully to the sound of a human voice. And you'll find new meaning in your writing when you read it aloud.