Why Do I Have So Many Sketchbooks? So Many Ideas.

I buy numerous sketchbooks for my ideas. They're not very professional either. I tear out pages, cut out ideas and paste sketches from other places in them. They're very functional for me.

1. Different sketchbooks with different topics. This allows me to concentrate on a focused set of ideas. When I pick up my human studies sketchbook, I know I'm going to be drawing people. It helps me focus also to see where I've been in the past. 
2. I don't short-circuit any ideas. If an idea goes into a sketchbook that works better somewhere else, I will clip it out and put it into another sketchbook.
3. With a pen and a ruler, each sketchbook is divided into sections (usually nine segments). This was a breakthrough. Now I can create segments that are discrete and framed outputs. I don't have this huge page of paper to waste space adding random thoughts to. Each frame has a little border around it that I can write in if need be. Nine ideas, and then I move on.
4. If a sketch is found to be distracting, I clip it out and put it in a more appropriate sketchbook or I send it to the trash
5. I use different drawing utensils. For some reason, I found that I get different output when I use different pens, pencils, markers or simply colors. If my ideas need a jolt, I simply switch my utensil for a few pages.
6. Over time, when I go back and look at my sketchbooks, I'm taken back to the mindset I had when I created those sketches.