When we talk about personal growth tips, we have to talk about a fun 30-day happiness challenge. This 30-day challenge for happiness shows you the best rules to be happy in life. You'll learn some good daily habits to be happy and habits of happy people, also known as habits to be happy. If you want to know how to be happier, how to be happy and how to have a happy life, try these simple habits of happiness, also known as ways to be happy. This is among my favorite 30-day challenge ideas.