There’s a certain power in saying “I don’t know,” simply because it’s the truth. It can also be an opportunity to learn something new. But if the question is one you should have an answer to, those three words alone may not be enough. Naomi Karten gives some helpful alternatives to just saying "I don't know."

How often do you truly laugh? Probably not nearly enough. Laughter relaxes the whole body, boosts the immune system, and relieves stress. It also lowers blood pressure, exercises several muscles, and increases the response of disease-killing cells. That’s a pretty good case for laughing as often as possible.

Sometimes the only way you can give customers adequate attention is to make other customers wait. In this age of impatience, some people won't like to hear that. But the way you treat those who have had to wait can make a big difference in how satisfied they are with your services. Read on for some advice.