Sometimes the shots are sweet and simple, like this recently released photo of Prince William and Kate Middleton taken by famed fashion photographer Mario Testino. Other times they're against the background of crashing waves or somewhere else you probably wouldn't be strolling around in a fancy dress. And some get really creative, setting up romantic movie-inspired photo shoots. No matter where they're taken, they often end up on Facebook. Do you think they're a do or a don't?