(Tip from an opinion by Judge Richard Posner, as detailed in a post at the Pennsylvania Litigation Blog) Don't commit the double-identification sin ("the sin"), in which a writer inserts a parenthetical clarifying that which does not need to be clarified ("the unnecessary clarification") (Tip from "Writing the Persuasive Brief," by Judge William Eich in the Wisconsin Lawyer) Don't commit the used-car-salesman error,… [read post]