We all dream of being happy someday. Until then, we are overworked, overstressed and under-happy. The dream doesn’t seem possible without a lottery win or a call from a wealthy uncle in poor health. But what fun is life if we aren’t happy about it? The good news is, you can add happiness to your life now. Just a few serotonin-producing activities can reduce stress and make the wait for Utopia easier to bear.