This document provides 20 tips for creating a great lasting impression. Some of the key tips include doing your homework, being welcoming and accessible, getting personal and showing respect, listening and remaining present, delivering on details and following up, honoring commitments by keeping things simple, clear, and unique, and being thankful. The full list of 20 tips is also summarized. The document was created by Cathy Miller and provides additional resources on her business website for effective business communication.