I work best on a reward system for any job I dislike. I would have a cute little sewing project lined up and waiting for me after I put in my time organizing. The nice thing about getting all your fabric folded or on boards is you can really see what you have.
When I did mine I discovered buried treasures in my stash. Now when I want to start a new project I can easily see what I have and decide what I may need to pick up to finish my projects. I found that I was lacking pieces big enough for backs so I have been picking up sale fabrics in general light tones to finish up some UFOs.