A million bucks isn't much nowadays. Certainly not enough to retire comfortably in the US (yes yes, I know we've had a recent rash of articles on how to retire on $9000 a year or whatever, but I don't wanna live in a trailer park). I reckon you need at least $2 million, preferably $4 million, before you have enough money to never have to worry about money again.

Still, I like to think that Bill Gates, having been a many-billionaire since the 1980s, has lost track of what the hell a mere million dollars is worth nowadays.