I need a way to organize my ideas!?

I'm having a real hard time with my ideas. Right now, I'm an aspiring novelist/script writer. The problem is, I'm having to many ideas in my brain and have no way of organizing them so I can just work on one, finish it, then find a pick up another. Does anyone know a way that I can neatly organize my ideas. I have 10 novel ideas and 2 movie ideas. I need a way!