Placement Advertisements are the best. They get your attention from far away and they are usually visually interesting. I saw a really great Coca Cola billboard recently and tried to get a good pic of it but    couldn't because it was on the side of a freeway. The Ad featured a Coke bottle with copy but what grabbed my attention was the palm tree behind the billboard. The Coke bottle was placed so that the palm tree was exploding out of the bottle as if it was the refreshing softdrink. This really was a perfect ad, I tried to go back and get a pic a couple days later but the billboard had changed. I guess the moral of the story is to just always have your camera ready, you never know whats out there...