Hello. We are doing our second cruise on RCI on June 6th, and our first formal night. We didn't want to do it either, but when I found "the dress", it was no longer an option. About the space bags. I have seen them at Linens N Things, and other stores like that. I have used them once, for our honeymoon in Scotland in beginning of March. We packed LOTS of heavy winter sweaters, and such into the space bags. They worked great. That was before all these luggage weight limits, the airlines have now. I read that some people are getting slapped with $50 or more per bag weight limit fines. So, if you are using space bags, you possibly could be over your weight limit. I don't know if you are flying or not. If you are check with the airline on their luggage limit. My mom had to pay $50 fine on Alaska airlines, cause her bag was 3 pounds over the 50 pound limit. That can really add up quick. Have fun and enjoy getting all dolled up.