STAY IN THE MOMENT: We know this, we hear it, we even try to attempt it, but often we fail. If we're so worried about what's going to happen next, we will miss what is happening now. It is a simple-yet-profound concept. The English poet D.H. Lawrence summarized it nicely when he said, "I got the blues thinking of the future, so I left off and made some marmalade." It's amazing how it cheers one up to shred oranges and scrub the floor. Find your moments and stay in them.
EASE UP ON YOURSELF: Most of us know all too well that when life becomes the most difficult, we often think only of ourselves. The single easiest way to find immediate joy and happiness is to do something for someone else. What we gain in a true moment of doing something for someone else can have immeasurable impact on the part of us that seeks happiness. Go open a door for someone, offer your ear, your baked goods, your bicycle. Just do something that focuses on someone else, and then wait for the return.
And, one last thing, if you do nothing else, try to remember to smile. It's the first thing we do when we feel happy. It's been confirmed that the act of smiling increases feelings of genuine contentment. So go ahead and smile more than you have been, it takes nothing beyond the thought to do it!