This document discusses common writing errors and provides examples and explanations. It covers commonly confused words like your/you're and affect/effect. It also discusses avoiding sentence fragments by ensuring sentences have subjects and verbs. Additionally, it notes that only FANBOYS words can connect two independent clauses with a comma and explains other words like however are weakly connective and cannot be used in that way to avoid comma splices. Finally, it provides a review of the common errors to proofread for, including confused words, fragments, and weakly connective words, and recommends additional resources on common errors.