I can't wait to fill my classroom walls with posters. This is a great poster to have in the classroom, to remind students of the writing process, and it could also double as a clip chart, and track where the students are during the writing process.
ELA creative writing outlaw The Seven Deadly Sins of Punctuation And How You Can Avoid Them (Note: Read carefully. They preface each "faux pas," telling you the correct usage, but provide the WRONG way as examples. It's confusing).