Recall that people like to do what most people think it is right to do; recall too that people like to do what most people actually do.

Most people start claiming benefits within a year of when they become eligible, although benefits increase substantially if they wait.

Most economists, including me, agree that longevity insurance would make sense for a lot of people.

A good rule of thumb is to assume that everything matters.

I don't go by the ratings. I buy wine that tastes good. Statistically, anybody's ability to predict what will be a good wine a decade from now is limited.

Is there a market for somebody selling a credit card that helps people pay down their balances? I think the question is yes. But it would have to be sold by a bank that's really willing to invest in being a trusted partner with its consumers, because they will make less money on each consumer.

Maybe you'll take the cash out. So a credit card company or a bank that goes into the business of saying we're going to be the broker, we're going to sell you a mortgage that you're going to be able to pay off, we're going to help you reduce your credit card debt, we're going to help you save for retirement, we're going to put you into mutual funds that have low fees rather than high fees.