You just won a 656 Million Dollar Lottery. What do you do now?

This was taken from a reddit thread by DanielP123.
"$656 Million was the largest lottery win in the history of the United States. If you won that money, what would you do?
Also; what would be the most responsible thing to do?"

I thought this would spark some good discussion on here.

So, what's the first thing you do when you just won millions of dollars?

The first thing I would do is to make sure that I can claim the check anonymously, so not too many people know about my instant-wealth.

Chat away!