Pay it forward. Give a compliment. Say a prayer for someone. Expect less. Be nice. Open a door. Offer up your seat. Tip generously. Say "thank you" and "you're welcome." The list goes on and on.
I'm thinking a ginormous amount of happiness could result - as opposed to the inevitable breaking of a resolution too unattainable to keep. Alert the media? Let me know how you do on this.