1. Add a one-line summary of your business to your email signature. The person you sent the email will already know exactly what you do, but the colleague to whom she forwarded that email might not.

2. If you send HTML email and your email signature or stationery is rich HTML, sign up for (at the very least) a Hotmail and Gmail account and send yourself a test email so you can be sure your pretty signature doesn’t fall into a messy heap on those email clients. Find someone who has the opposite platform (Windows/Macintosh) to you, and send them a test email, too.

3. Don’t allow each of your staff to choose a different font for their name that matches their personality. Please, don’t.