Contenders, ready! Deal hunters, ready! The countdown to Black Friday, the world’s biggest shopping bonanza, has begun. In less than two months you’re going to be able to secure reductions on all your favourite bits of tech, beauty, home appliances and more. Despite starting out as a one-day sale held the Friday after Thanksgiving in the US, Black Friday has since blossomed into a weekend-long event and, more recently, a one- or even two-week-long shopping spree.