We've all got an image in our minds of who uses "offshore tax havens" to host their business. Let's say you're a junior-varsity Russian oligarch. You've spent a lifetime looting your country's resources like an all-you-can-steal buffet, and now it's time to take some of your chipskis off the table. You buy a flat in London's posh Mayfair, or maybe a condo overlooking New York's Central Park. Then you stash the rest of your rubles in some sunny flyspeck of an island like Bermuda or the Caymans, where Putin's goons can't steal them back.
But most people who do business offshore aren't crooked billionaires. They're perfectly legitimate multinational corporations, business owners, and investors just like us. If you've worn shoes from Nike, made calls on an iPhone, or downloaded music from Sheryl Crow, you've even done business with them!