Jay Harris is Cpt. LoadTest

In Right like a Writer, I mentioned how a list of items should include a comma after every item except the last, including after and or or, and how you should only use one space after a period, rather than two. All versions of Microsoft Word can be configured to monitor for both of these using the grammar settings built in to the application; it will identify violations during regular grammar checks. Here's how to enable these options in MSWord 2007:

Additionally, the style checks available through Word's Grammar Settings can also be very helpful. I prefer the "Grammar and Style" writing style option, as it enables all of the style checks. I encourage you to investigate all of these options, as well as enable the comma and sentence options, as they will help you write right like a writer.