If you could jump back 20 years and visit the typical office, what would you see? Power suits, a poster of Simon le Bon, Filofaxes and leather wallets stuffed full of cash (well, at least that's the impression we got from watching Wall Street last night…). You wouldn't see people emailing friends every two minutes or posting pictures of horrific sporting injuries on notice boards. But, thanks to the Internet and email, such frivolities are now commonplace. In this hot tip, Martin Edwards outlines an effective Internet and email usage policy.