I have two separate MOs. One for when I'm trying to understand, interpret, and bring to film (life) someone else's idea (i.e. a commercial assignment where the AD is king [or, queen]), and a different one for my own photography. The latter MO is loose and adaptive, responding to both my mood and my surroundings. While I tend to be an obsessive planner, I also try to pay attention to whatever alternatives might come along.