My new plan is to follow Lloyd Dobbler's advice: Decide to be in a good mood and just BE in one. I'll let you know how it goes. My co-worker has already weighed in: "You better shut the hell up with that happy singing crap. You're not gonna win any friends that way."
The cutest scavenger hunt of all time was in the library this morning: dozens of four-year-olds wearing matching red vests. They all had a page with pictures on it of the things they were suppossed to find. "I found a escalator! It goes up and down!"