She may be unlucky in love,but in terms of style, Pippa Middleton still seems to be ticking all the right boxes. November has seen the sister of the Duchess of Cambridge showing off yet more of that highly copied wardrobe as she continues her off to work fashion parade. With the exception of Anna Friel’s stage door parade of fashion, I don’t think I can ever remember another woman who was so highly photographed going to and from work. Still, this gives plenty of opportunities to observe that work wardrobe in great detail. This blue polo neck dress is a fabulous colour on Pippa, but polo neck styles are something…