Yourself!

Get plenty of rest for the couple days before we shoot. I know, I know, we all lead hectic lives, but a lot of people are going to be looking at these photos for a long time, so give yourself a break. Avoid alcohol and drugs the day before, they take the sparkle from your eyes. Allow sufficient time for the session, at least two-and-a-half hours. Bring music you like, that you can sing along to, that makes you happy, that you find evocative.