This is not a new suggestion: it is one I have often heard before and one I take to heart, but I thought this might be a good time to repeat it. The little man on the bus is someone I only see a few times during the month, but he always provides me entertainment and good advice. This is an excellent suggest from someone who copy edits attorney's briefs. Read your work out loud. What will this accomplish? You'll discover whether or not you need more (or fewer) commas by paying attention to natural pauses. You'll be able to hear if your words are flowing smoothly. If you find it difficult to read what you have written, imagine what it will be like for a reader who comes upon it for the first time.