We Australians love a good deadline, and when it comes to shopping, there is no exception. Catch of the Day-esk sites are now common territory, however, Swedish site Speedsale is adding that something different by giving its customers just 4 seconds to take up the bargain on offer. Once those four seconds have elapsed, the opportunity is gone forever. Impulse buying has never been so obvious. I wonder if their returns policy is water tight?