Re-Consider the Rules of Thumb You Use in Everyday Life.

I'm working on my Happiness Project, and you could have one, too! Everyone's project will look different, but it's the rare person who can't benefit. Join in -- no need to catch up, just jump in right now. Each Friday's post will help you think about your own happiness project.

My adventures in the lands of happiness research led me to the concept of heuristics. Heuristics are "rules of thumb," the quick, common-sense principles people apply to solve a problem or make a decision. They...