crasch posted this article and I thought it was pretty interesting. I know a good bit of it has certainly applied to my own life (change "church" to "Margarita Friday", and wait for lightning to hit me). As always, your mileage may vary -- some of it sounds counterintuitive, but I think it's interesting food for thought.
Happiness: A User's Manual( saving the text under the cut in case the link goes bye-bye... thanks Indigo for the idea. Also adding my own comments in italics. )