Imagine you have six loans, small to huge. People want to close loans and because of that, they try to pay off the small loans, but that's not the right strategy. The right strategy, of course, is to pay the loan with the highest interest rate. People make this mistake and it costs them lots and lots of money, it's a very expensive mistake because interest rates accumulate and become very, very expensive very quickly.

The things that motivate us are to help other people, to feel that we're useful, to feel that we're getting better, to feel that we are kind of living to our potential, to get a sense of meaning. All of those things are positive.

...[D]ivision of labor, in my mind, is one of the dangers of work-based technology. Modern IT infrastructure allows us to break projects into very small, discrete parts and assign each person to do only one of the many parts. In so doing, companies run the risk of taking away employees' sense of the big picture, purpose, and sense of completion.

Take a brilliant, creative social scientist, without any respect for conventional wisdom and you get Ellen Langer. She is a fantastic storyteller, and Counterclockwise is a fascinating story about the unexpected ways in which our minds and bodies are connected.

We are all far less rational in our decision-making than standard economic theory assumes. Our irrational behaviors are neither random nor senseless: they are systematic and predictable. We all make the same types of mistakes over and over, because of the basic wiring of our brains.

None of us always make the best financial decisions.

When you get a checking account, you should have a savings account, and the number for the savings account should be one off of your checking account.