How much is rich?
1 Million: Put some of it towards my mortgage. I might go on a extra trip but for the most part there wouldn't' be any significant changes.
10 Million: Buy a bigger house and perhaps a vacation house.
100 Million: Start up my own video game/independent movie studio. Dream come true.
1 billion: All the above and a fortress (with a dungeon maze). I would also create a foundation (I have one in mind already)
10 billion: All the above, but I would become a producer for games and film.
100 billion: All the above and more. At this point I would get into larger real estate, and build arcologies for the underprivileged.
1 Trillion: All the above! I would build my very own set of bridges and highways across the state of Oregon. I would buy out the city of Portland and demand that they get their shit together or else they don't get any free fucking bridges. Lastly, I would invest heavily in space exploration.