I've bought a dress for a fairly informal wedding I'm going to. Registry office, lunch in nice pub then catered hall for big evening do. I've bought this dress from Oasis but I need something for over the top, as we will move venue a couple of times during the day. I've had a look at winter type coats as I need a new one but they are all so heavy and the wedding is early October. On the website it is shown with a cream jacket but I can't see me wearing it again. Help!