Hi rach lucky you I love cruises.! first of all which cruise line are you going with.? we have been on two different ones. one freestyle,no dressing up and one with 2 nights formal. I bought a few dresses from ebay and took shorts/t-shirts for days. Trousers are ok at night but most woman dress in dresses on the formal nights. A little bit of sparkle. My husband got a dinner suit and different bow ties. he also has a dinner jacket,cream. I got dresses the same colour as his bowties,black,purple (hubby didnt like this but wore it) he also had red.I wish it was me going. at first we didnt want to do the dressing up bit but really enjoyed it when we did it. It was so nice to see the men in there dinner suits all togged up.even youngsters in families had dinner suits on. Brenda x