Take a brisk thirty-minute walk every day. Smile a lot. It costs nothing and is beyond price. Stop and read historical roadside markers. Learn to listen.
Opportunity sometimes knocks very softly.
When someone is relating an importnat even that's happened to them, don't try to top them with a story of your own. Let them have the stage. Give yourself an hour to cool off before responding to someone who has provoked you. If it involves something really important, give yourself overnight. Strive for excellence, not perfection.