Carol -
My solution is to take an all black outfit - pants, shell and lace blouse in Chico's Travel wear or Coldwater Creek. Add some sparkles - a scarf, jewelery and you're good to go.
My husband always takes a sport coat and I bought him a black one in wool that folds and doesn't wrinkle. Black slacks and a silk t-shirt and he's good too. He can wear the jacket on a plane with jeans too.
