I met Alexander Kjerulf, the self-titled Chief Happiness Officer (possibly one of the most cheerful and effusive people you’d ever meet) at euroGel 2006, where he was running a workshop. Now he’s coming to the UK to work with HP, providing consultancy on happiness in the workplace. There’s a competition running to win free consultancy for companies of 100 employees or less. If you work somewhere of that size, and you think your workplace could do with a few smiles, I’d strongly suggest taking a look at his blog entry on the subject. He’s a great chap and you’d potentially be getting some great consultancy for free.
(even if you don’t work in such a company, take a look anyway; his blog is full of inspiring tips)