Laura Vanderkam, a Philadelphia-area journalist, is the author of 168 Hours: You Have More Time Than You Think (Portfolio, 2010), and What the Most Successful People Do Before Breakfast (Portfolio, 2013). She is the author of the forthcoming book, Mosaic (Portfolio, 2015), which is a time diary study of 1000 days in the lives of professional women and their families. She is a frequent contributor to Fast Company’s website, and is a member of USA Today’s Board of Contributors. She lives with her husband and three children, and blogs daily at www.LauraVanderkam.com. ^[1]