This can be one of the best ways of keeping little things on the floor. You can be creative and try utilizing your wall space by hanging some of your stuff.
Aside from walls, the ceiling can also be one best way of keeping fewer things on the floor. You can have a sliding storage system on your ceiling. This can be a perfect storage and organization idea for you.
Using a metal cabinet or shelving system is helpful for people who have garages that have limited space. This picture can help you have that idea.