The economy's strong, my job's secure, I figured now's the best time to finance a $60K car!

For the last two years, I've fantasized about owning a car that doesn't so closely resemble a pile of crap. More so, I've fantasized about owning an A5/S5 as soon as I saw one. Well I recently pulled the trigger and realized just how amazing it is to own this car. I love it! And I'll be looking to all you car nerds and your infinite audi wisdom for answers to the most commonly asked questions before attempting to do any search whatsoever.

First question, are there any absolute-must-first-things-to-do when I get my audi (besides peeling out of the dealership with Nirvana blasting)?

Thanks in advance for all your help that is soon to come!