It's really no different from having $3,000,000... but I'd just use it to wipe my ass and flush it down the drain. People at that water-sewer plant would love that.
Get a mortgage on a $2mil condo in Miami.
Set aside $2mil for cars over my lifetime.
$4 million in the bank for expenses over lifetime.
$1 million in high-yield funds for when I'm old.
$1 million in 1kg gold bars.
Retire.
Watch my monthly gas checks roll in for addition money to add to both the car fund and expenses fund.
I would buy my mom a new car. I'd snag myself a 2013 GT-R and most likely head to AMS and get the car built. I have a friend in Chicago as well so I'd buy him an Evo X MR. From there I'd buy my other friends in North Carolina plane tickets to Chicago and we'd party and race all night. The rest, I'd either save or invest some of it.