I'm off on a seaside break next week and have been searching fruitlessly for a nice new dress for my hols. I'm after something midi length that I can wear for casual days out with two small children, and not be freezing cold. I feel like I've trawled every website I can think of and although I've seen some lovely dresses, they're all either a bit too summery or a bit too dressy. Help! Bonus points for anything breastfeeding friendly 