What makes you happy? That's a serious question... maybe one of the most important questions of your life. I have found there are three major fall-outs that unknowingly making yourself unhappy:
1) Postponing Happiness - the "When I (fill in the blank), I will be happy" syndrome
2) Spending Your Life Trying to Make Other People Happy
3) Contrast - Comparing Yourself with Others
For me, two of the best ways I know to live in happiness is to a) live in gratitude; and b) helping those around me, in other word, serve #ServeToLead