There are 21 strategies for changing habits, says author Gretchen Rubin. The most fun is one that incorporates the usage of treats.
Gretchen Rubin is the author of many books, including the block-buster New York Times bestsellers The Four Tendencies, Better Than Before, and The Happiness Project. She also has a top-ranked, award-winning podcast, Happier with Gretchen Rubin, and a popular blog, gretchenrubin.com. She lives in New York City with her husband and two daughters.