Gretchen Rubin's Better Than Before explores habit formation, arguing that there's no one-size-fits-all approach. The book introduces the Four Tendencies framework(Upholders, Questioners, Obligers, Rebels) to understand individual responses to expectations, impacting habit success.  Various strategies are presented, including monitoring, creating convenience, using clean slates, and employing safeguards to overcome challenges like procrastination and loopholes. Ultimately, the book emphasizes self-awareness and personalized approaches to building lasting, positive habits.