How many interests do you have? That's a question that we might have been asked as a child but that no one asks us anymore. How many hobbies do we have and how many would we like to have? Many of us would have more interests if we had a insurge of free time, extra spending money, and a little motivation. But adding these is one of the secrets to a long and happy life. Here are some ways to sneak in some learning when we are busy, tired, and overwhelmed.