That's a good question. For me it is mainly to tidy things up. I feel more at ease when I know where everything is and when everything is simple. It's a similar

That's a good question. For me it is mainly to tidy things up. I feel more at ease when I know where everything is and when everything is simple. It's a similar feeling to working on a messy desk vs a clean one. Disorder places a tiny amount of additional mental burden.