How keeping notes from a book can help solve real-life problems

By reading a book on infant sleep problems, the speaker was able to solve their own problem of their son's sleep issues. They kept notes from the book, highlighting key points that would help solve their specific problem. The notes were organized into a project folder and distilled into a one-page sleep plan that was hung on the bedroom door. This process of keeping notes and creating a tangible artifact can be applied to solve real-life problems in various situations.