I would be really flaky about my jobs (I'd still work during the week most days) and quit when they stopped being fun and take more vacation days than normal people get.
Then I'd drive my Aston Martin to the nearest airport and fly first class all over the world. Once I landed at my destination I'd eat really fucking expensive food, only nice restaurants forever, and I'd go absolutely hog-wild on the nightlife. I'd also pay out my ass to do things like skydiving, riding the "Vomit Comet" weightless training plane, and space tourism.
I won't bother talking about how expansive my wardrobe would become, filling at least 50% of my large house (with maid service) with closet space. My regular clothes would be phased out with nicer ones and I would invest in some designer handbags and shoes just because I could.
I'd get that boob job, go to only the most exclusive stylists (Asian only, I don't trust other people to cut my hair), and hire Uneasy_Conscience to be my personal trainer. I would also inevitably become addicted to amphetamines and cocaine, so I would become "hungry chic."
Then I'd get tarted up and hang around college campuses and high schools preying on 18 year olds. I guess I could do that last part anyway, but it's a little too soon.