If you are going out somewhere nice over the summer (when the weather is reasonable anyway!) and wearing a dress, what do you wear over your shoulders for a chilly evening? I'm holiday shopping for our cruise in October - daytime weather I would expect to be low 20's but obviously dropping in the evening, especially out at sea. It's dressy casual most evenings and I'll probably wear dresses most nights for dinner, but I have no idea what to wear over my shoulders. Is there a neat summer jacket that might go with dresses? All I seem to be able to find is denim jackets which won't suit. I could go with a cardi I guess, but it feels a bit too casual again. Any suggestions?