I cannot imagine going to a photoshoot without having some sort of plan in my head - in fact, I usually stress the importance of having a plan to my clients - long before we ever shoot. Funny thing is that even though I have a plan, and even though that plan almost always makes the photoshoot the best it can be, I almost always find myself deviating from the plan at some point. I think this is because my mind is continually going at full speed throughout the shoot, and new ideas are constantly popping into my head. When that happens, I am always willing to toss aside my plan ( temporarily... ) to pursue that new idea. It almost always works!