M2 owners: What are the must have's/do's for a new owner?

I put my name down on a waiting list at my local dealer for an M2 in October/November. They finally got an allocation for me a week ago and we put the order in.

What are the necessities you recommend buying/doing to the car to enhance longevity, enjoyment, or whatever else you can think of?

Also, thoughts on break-in and what's the maintenance been like so far? Any issues?

Cheers!