Human emotions are a behavioural guidance system. All of them are useful, but sometimes the calm and cheerful ones are under-represented. In this lecture we offer a definition of happiness and consider which of the many forms of happiness we are most interested in enhancing. We look at emotions in three times: Before, During, and After an event, and start our quest for the most lasting satisfaction. We also point out that this course isn't about how to make MORE money, it's about how to make the best use of the money you already have in order to enhance your life.