Buy some land and live off it. Probably somewhere in Wisconsin or Michigan. I wouldn't need more than 10 acres. Build a small house, small enough that it could be heated with a wood stove if need be. Set up solar power, a well, and a septic system. Set up a greenhouse or two for growing food, maybe a small orchard. Get chickens and goats, and later on maybe some pigs. Trap small game and fish if I can get land with water or near it. I wouldn't be completely off the grid at first, but eventually... Well, that's what I daydream about, anyway. Realistically, I'd first pay off my parents' mortgage, cay payment, retirement, etc. Then I'd put some away make sure my brother can go to any college, even a private one. I'd donate a some to my church, because I know they're always short on money for maintenance. Next, I'd probably plan vacations to the national parks and wilderness areas across the US. That would most likely eat up all of my money. Whatever's left I'd invest a good portion for later in life, since I'm still young.