CLARKONOMICS: Have you heard about the new documentary I.O.U.S.A.? Don't expect this flick to be a Hollywood blockbuster or to sell millions of tickets. In fact, Clark jokes that it's a true sleeper hit -- emphasis on sleeper!

I.O.U.S.A. is the brainchild of Warren Buffett, Pete Peterson and other wealthy folks. As the title suggests, it focuses on how we as a nation have wracked up debts that we can't pay.

This film describes in nauseating detail how we as a country can't afford the Social Security, Medicare and Medicaid that we've promised our citizens. The math simply isn't going to work, especially as we live longer life-spans.

The takeaway for you is that you are the only who can provide for your retirement -- particularly if you're under 40. So you can either start saving money now, or face the fact that you may not get to retire. Not retiring is not the worst thing in the world; retirement itself is a relatively new concept in human history.

If you can save as little as a dime on every dollar you make, you'll put yourself in good stead for retirement. Do you have an employer match through your 401(k)? Make sure you're putting in at least enough to pick up the match.