By now, we all know just how powerful social media is. One false move and a company can be in big trouble. On the flip side, if a company comes up with a way to use social media as a way to engage customers, it can mean major success. Whether it’s day-to-day, or for a national campaign, these days, it’s all about customer engagement. And, boy, did Lay’s hit the nail on the head with their Do Us A Flavour Contest.