The best part of such an event, Mr. Bouley says, is how it leaves your guests feeling at the end.

WSJ: David Bouley on Spontaneous Entertaining

Considering how governments are suddenly feeling that tracking your every move, or at least providing the means for someone else to, is such a brilliant idea, it's no surprise to see the Bluetooth masters at Cambridge-based CSR buy up NordNav and Cambridge Positioning Systems.

ENGADGET: Britain's CSR developing uber-sensitive Bluetooth / GPS hybrid chip

Feeling good about how you did your job may have been a motivator for you.

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No matter how crazy your day is, it's lovely to have that feeling like you look forward to going home.

BBC: Christine Bleakley

No matter how good your technology may seem, you have to create the right feeling to set the stage for serious investigation.

FORBES: You're Uninvestable, You Don't Follow The Rules

"This level of intense feeling of aggression shows you how intensely bonded you are to your baby, " she said.

CNN: When motherhood becomes a nightmare

The app works by pinging you each day to ask how you are feeling, then uses satellite positioning (GPS) to track your location.

FORBES: Dr. iPhone's Happiness App

Checking your heart rate, whether using a monitor or simply feeling your pulse immediately after a workout, can provide valuable information as to how hard you are working.

CNN: Is it possible to 'top out' on cardio strength?

No matter how miserable you are feeling at the moment, if you look back, there have surely been events in your life that have made you happy.

FORBES: How to Keep Happiness From Fading