Oh, and don't post all over the internet about it. ;-) But I see you're using a throwaway, which is a smart move. As the reddit PF link will also tell you, don't go around telling everybody about it. In fact, for now don't tell anybody but your spouse (if applicable) and your tax advisor. You can always tell people later, but you can never un-tell someone. You'd be surprised (or not) at how people can get when huge sums of money are at stake. Even if people know you are getting an IPO windfall (or what have you), be vague and downplay the amount. Don't promise anybody anything. This goes 10x if they are asking you to.