According to the author of Perfect Mess: The Hidden Benefits of Disorder,
Just because your idea of “organized” is scattered or mixed up doesn’t mean you’re necessarily slower or less efficient; you may just have your own system. And if you’re naturally a little sloppy, what really wastes time is struggling to maintain strict order. Sure, always searching for your keys isn’t exactly time efficient, but think of the treasures you’ll discover in the depths of your bag!
The evidence is building that organized people are less efficient workers, and may actually get less work done on average of messy people.