Black Friday might seem like a long time ago now, but the impact of this new phenomenon in the UK still ripples. Retailers such as Dixons Carphone embraced the shopping day and once the results were tallied, that turned out to be a good move. The retailer attributes the success to careful planning around promotions and supply chain in anticipation of Black Friday, which contrasts with press reports of other retailers not faring so well for the opposite reason - a....