"What-went-well exercise. Every night for the next week, set aside ten minutes before you go to sleep. Write down three things that went well today and why they went well. Next to each positive event, answer the question "Why did this happen?" Writing about why the positive events in your life happened may seem awkward at first, but please stick with it for one week. The odds are that you will be less depressed, happier, and addicted to this exercise six months from now." - Martin Seligman