Style Checklist: Short Version (click here for long version)

 
Use present tense when writing about fiction.
Use ACTIVE, not passive, voice. (song lyrics exercise)
Replace "to be" verbs with interesting, action packed verbs. (Use the computer to highlight them)
Avoid expletives: it is, there are, this is. . . 
Combine sentences as one way to eliminate wordiness and redundancy.
Reduce prepositional phrases to eliminate the laundry list syndrome. (paramedic method)
Eliminate vague pronoun references: you, we, they
Eliminate pronoun shifts from singular to plural.
Use a comma before a conjunction (and, but, or, so) if the list consists of a series of 3 or more items or if it links independent clauses (you can identify an independent clause if it has a subject and verb that allow it to stand alone as a sentence) 
Use a comma after an introductory phrase, clause, or word.
Use a semicolon to link two independent clauses when the second clause begins with a conjunctive adverb.
Use the apostrophe for POSSESSIVE, NOT PLURAL
Capitalize proper nouns
Underline or Italicize titles of books, movies, journals, magazines, newspapers, government documents, tv shows, (see p. 497)
Maintain a professional tone by using middle to high level diction. Avoid slang, clichés and colloquialisms.