Quoted from Better Homes and Gardens: Max out available space in an office closet with adjustable wire shelving. Use open baskets for supplies you access regularly and boxes with lids for infrequently used items. Divide papers to be filed in layered trays and set up file folders for items that require action in the upcoming month.
.... down one side of the wall. Nook, book shelf, and another nook for a 2 bedroom apartment.
In a small space, take office storage to the walls to keep work surfaces clutter-free. In this space, cubbies were mounted to the wall and magazine holders were screwed into the bottom of the cubbies for an innovative mail sorter. For an easy and affordable work surface, transform a slab door into a desktop by mounting it to a wall and placing bookcases or file cabinets beneath it for support.