I like to think that I'm OCD when it comes to being organized. I like things to be in order or else I start feeling anxious and stressed.
I always keep my planner with me (this one is from Michael's for $17.99) to help with that issue. I write down my monthly bills, when they are due, when they are paid, and I track my daily goals and meetings...oh and of course, PHOTOSHOOTS!
As minor as it may seem, or as old fashioned as it is to write versus using something electronic. It works for ME. You have to figure out what works best for you and go with that, despite the ever changing world around you.
I love using lists (things to do, shopping) as a way to organize and feel a bit of accomplishment when I get to mark it off. Overall, stay neat and organized to keep your hectic at moment life in order. <3