Christmas is so nearly here. This time next week we’ll be getting the stockings ready, sorting out a glass of sherry and a mince pie for Santa, and generally rushing around making sure everything is going to be perfect for the most wonderful time of the year. But for those of us who are fans of High Street brand Next, we may also be getting quite excited about what is the most wonderful sale of the year. Next sales are legendary. They entice people to queue outside in the early hours of Boxing Day for hours on end, and are one of the sales that actually offer half price on…