I've read a lot of books similar to this one, so I can't say that most of it was wholly new--the concept is, be intentional with how you spend your time, and don't just fill it with more for the sake of more. Don't say yes unless you intend to do so, because the activity you're agreeing to is actively something you're excited about doing. Most of us really do seem to go through the motions, and do what we've always done, without examining whether it's truly advancing us toward the life we want to live, or not.