I have recently found an interesting way to keep myself orgenized: Pocket Mod.
As they said: "The PocketMod is a small book with guides on each page. These guides or templates, combined with a unique folding style, enable a normal piece of paper to become the ultimate note card."
You can keep it in your back pocket and it is really comfortable. Take notes during your day for further planning and thinking. Then, it is cheap as one piece of paper, it opens like a book and this book and can be designed as you want. You can easy create your own format of your Pocket Mod, becouse it is just a good idea.