Personal-finance blogger John, who hasn't revealed his last name, has spent the past few years interviewing millionaires.
According to Business Insider, John found that many employed a simple three-step strategy to build wealth.
The first step is to earn good money. Pick a career path that is both enjoyable and lucrative.
Next, once you've earned it, save it! Don't blow it on crap, or go into debt and throw money away on interest.
Finally, invest it in low-cost index funds.