Fun to listen to all of this. On my Antarctica cruise, it was casual too, and cold weather. I will tell you a cotton cable knit sweater for casual wear weighs more than some little light weight dressy top to go over casual black pants. I never did "get" what people talk about with formal wear weighing more for women! So I packed two bags.

One of my bags from that trip never made it back home to me, only time I've ever had a "lost luggage" claim all the way through to insurance. Most times it comes within a few days. It never came. This time, I wondered whether it ever got from the chartered airline to the line I was using to get back to the states. I was using Delta, and got a check in the end for contents, at their limit. Lost a lot of warm weather gear in that suitcase. Had never happened before, except in 70's with ski boots, and has not happened except this one time. So I would be hesitant to even bubble pack any camera lenses if they are not covered in checked luggage.