What to do after graduation with 100k?
CatDancer: One option: use your entrepreneurship and management training to figure out the answer to this question: what could someone with your skillset, who didn't need to otherwise work to support themselves, and was willing to devote 100% of their time, do that would have the maximal positive impact on the world?Then live frugally, like a college student.  The 100K will support you for the next four years.  To be able to devote 100% of four years of youthful, intelligent energy towards one of the world's problems without other major life distractions (school, job) would be an amazing resource and you could have a tremendous impact.  (An important component of this should be finding something that excites you, rather than just responding only to a feeling of guilt).I disagree with the commentors who suggest you should invest your money.  You're an entrepreneur.  If you want another 100K, you can go out and do something to make that.  (I would however recommend never, ever, going into debt: never spend money you don't have on the assumption that you'll be able to make more later; this is a powerful reality check that ensures that you really are doing what you think you can).I expect other commentators to voraciously disagree with my suggestion that you spend the money supporting yourself instead of saving it; I'll just note that in advance so I won't feel like I need to respond to any of the responses.