What are the best ways to maximize storage space in a small room using 2x4 storage shelves?

To maximize storage space in a small room using 2x4 storage shelves, consider utilizing vertical space by stacking shelves high up on the walls. Additionally, use the shelves to organize items efficiently by categorizing and arranging them neatly. Lastly, make use of any available corner space by installing corner shelves to further optimize storage capacity.