What should you do first when you examine capitalization and punctuation?

Check first for end of sentence punctuation. Next, read each sentence out loud; notice when you pause to breathe. Check for commas at every pause; determine if a comma is needed or not. Look for clauses that need a comma after them. Do the same for lists. Lastly, slowly read each sentence to double check your use of capitalization. If in doubt, check a style handbook or your textbook.