Here’s an experiment we ran at Idealogy just recently, and it’s really fun and straightforward.
Take a screen grab of your iPhone home screen, show it to a friend, a colleague or a third party and let them give you a summary of your personality, based on the way you display and organise your apps. Like all things ‘psycho’, sometimes it’s bang-on and sometimes it’s way off. But it’s strangely compelling, and a good way to start an argument.