Desks can get much cluttered very quickly if you are not consciously keeping it clean. A deck that packed full of stuff can create a distracting environment and encouraging procrastination. It can also make you feel so difficult to find things that you need immediately. And it also encourages clutter-ness in other parts of the room.
To maintain it, you need to dispose immediately; leave the stuff that you do need because keeping them will not benefit you. You can use file boxes or folder to store the stuff that land on your desk. Once you have done with it, try to reduce everything in it to zero everyday or every other day. Now take a look at these 20 minimalist desk with extra storage space below, so there is no more clutter problem.