The above note was a story idea I had that ended up becoming my novel, Isolation, published in 2007.
Here are the spiral bound notebooks dating from 2002-2008. I keep the 2009 with me most of the time. I still refer back to these notebooks from time to time. I keep them on the shelf behind my desk.
As I work on a project, I'll have a folder out on my desk for easy access. These are the three on my desk now.
I'm not the most organized guy in the world, but I do force myself to be organized with ideas. I make sure I ALWAYS write an idea down. Sometimes the idea is ridiculous. Sometimes (as shown above) the idea written down might end up becoming a published work. You never know.
Do whatever works for you, but do something to keep organized. Do whatever it takes to plant your rear in that chair and get writing. This is what it takes for me.