Good organization skills bring not only order to you life, but also allow you to be more productive by reducing clutter and helping you find fast what you are looking for. Organizing your desk (at work, in your workplace at home or just at home) is one of the vital steps. Organizing things on the outside could often help you organize things on the inside.
When I start a new job, I always start at organizing my computer/laptop first. But immediately after that I start organizing my desk. Why is that important to me? Well first of all, you find things easier. Second of all, it helps others think highly of you and perceive you as an organized (and reliable person), which is beneficial. And last but not least, it gives you a safe spot among the whole chaos of starting a new job.
I usually re-organize my desk even when I am in a new position within the same company. Or just regularly throughout the year. Throwing garbage out is equally important as organizing what you really need.