With a million dollars. On this million dollars, you have already paid all taxes and what's left is straight up one million dollars.
What I would do:
1) Pay off school loans.
2) Help my dear brother start up a landscaping business.
3) Give my mom some.
4) Completely pay for the wedding.
5) Put a hell of a lot of it in savings.
6) Take a nice long country-hopping trip after graduation and the wedding just to have some fun.
7) Donate to a charity... or five.
I mention nothing of buying a house because of the fact that I will be moving frequently enough that I won't be in the same place for more than a few years. House... maybe later. When it comes to cars, I rather like T's Mazda 6. So, really I'd take that and tell him to go car shopping for himself. If he got his dream car, that means I get to drive it, too. I would not quit working. I'm not the type of person that would be happy being a stay at home wife. Though, it would be nice to have the security that I could if I so chose.
So, what would YOU do with it?