Never forget where your towel is...
and take a book, actually a couple of books. Squeeze in some exercise everyday and eat as well as you can. 5 days of junk food and debauchery sounds like fun, and it is, but you're also asking your body to do things that it's never done before, at least in the quantities that you need it to.
Like any other piece of your equipment, look after it.
Rest well too.
Enjoy the ride Charic.