I need help. I am always cold. Not just a bit chilli, freezing, turning blue cold. I'm going to a fairly casual Christmas party (in a pub so not mega dressy can definitely get away with trousers). I've seen a nice glitzy top that I really like but it's strappy and I know I will freeze. What I really want is a nice jacket or cardi to go over the top but not sure what. If at all possible in navy but I would settle for black. Any ideas?