I saw something on TV once about a guy who spent a couple of decades "pretending" that he only had half as much money as he actually had. 50% of everything he ever made went into a bank account and he didn't let himself touch it, no matter what. Anyways long story short he was a millionaire and retired by the time he was 35 or something
You know what though, I wish I'd come up with the idea for the Million Dollar Home Page. Easiest way ever to make money.