The Happiness Project: Or why I spent a year trying to sing in the morning, clean my closets, fight right, read Aristotle, and generally have more fun by Gretchen Rubin

According to the author: “My book, THE HAPPINESS PROJECT, is a memoir of the year I spent test-driving the wisdom of the ages, the current scientific studies, and the lessons from popular culture about how to be happy--from Aristotle to Martin Seligman to Thoreau to Oprah. As one of the hundreds of happiness experiments I conducted during the research and writing of the book, I started this blog. Here, I recount my daily adventures in pursuit of happiness.”

http://www.happiness-project.com/
By checking out the blog and reading the book, you can configure your own happiness project.