Today’s a day for waltzes from Vienna and loafing around on one of the three days of the year when people actually stop work. But tomorrow, it’s going to be business as usual – only worse. The retail sector goes all glum on 2 January. It’s out with the party food, the charcuterie platters, port and anything featuring mincemeat, and in with smoothies, salads and plant-based ready meals, plus a focus on fitness gear in the clothing department.