This has been my favorite simpleness book that I have read so far. It's like a simpleness devotional. It is roughly divided into 12 months worth of devotionals on living life more simply.
With specific suggestions, stories, and ways to enjoy life, this book is wonderful. Things like, splurge and take a friend to the theater. Bring some flowers in from outside. Take some time today to do something fun. And so on.
I know that I came away from this book feeling encouraged and refreshed.