On formal night, get your picture taken at the various different photo stations--there is no obligation to buy. At first, you may think the photos were a little pricey, but when you consider there is no sitting fee, no obligation or pressure to buy, and you are already dressed up anyway--it's not such a bad deal. It would be a major production at home to get everyone assembled in nice attire for a family picture---so we take advantage of every opportunity on board when we can.