What I would do if I win the lottery (I have given it a lot of thought btw):
Take care of my ******. My ******, *******, and ****** will all receive substantial amount of money from me that they never have to work again.
Buy a new house, maybe one that I build myself. Must have a nice study room with space enough for me to display my collection.
If my marriage is going to end I will just split the winning with my wife and say adios to her first before buying anything for myself. Even if it's not I may just part way with her so we won't argue about how to spend the money.
Start a business, web-based, that will allow me to go to many events. Have press credentials that can give me passes to red carpet events like Oscar and Sundance festival so I can see celebs in person, as well as major video game conventions like E3 and Tokyo Game Convention. I'll be spending a lot of time traveling from one event to another and writing blogs for my web audience for rest of my life and loving every minute of it. I will also attend many sports games of my favorite teams like Lakers, Mets, and 49ers, probably buy season tickets for all of them.
Spoil my *** silly. He already has lots of toys but I'll make sure he's happy and healthy for rest of his life. But if he turns out to be a spoiled brat then he'll get a spanking from me and no inheritance money.
Hire a personal trainer who'll help me get the kind of body I've been dreaming about. I will to look rich AND ripped.
Last but not least I will be a major contributor to my High School football team because I want them to succeed year after year and never lose to the cross town rival ever again.