With all the talk about self-improvement these days, in fact, there are many common behaviours that have been shown to make people stupider.
Power in the pantry
A jar of martini olives, a bag of salted peanuts and a bottle of vodka stashed in the freezer are all essential tools for the socially ambitious man about town.
Dressed in a suit and tie and standing in the drawing room of a stately English home, he looked more like a stockbroker than a revolutionary and spoke more like an exile than a computer geek.
Andrew West Andrew West meets the artist and rock legend formally known as Chris O'Doherty.
Helena de Bertodano Sarcastic, slovenly Garfield - the world's most popular cat - is the creation of a man who couldn't be more cheerful or industrious. Jim Davis talks about the ginger tom that saved his life.
Interview: Paul Connolly, Sunday Life Former Socceroo Craig Foster on his sporting start, World Cup failure and life behind the mike.
John McDonald Damien Hirst's recent auction was just high-end commodity trading.