If you need room to organize belongings, the garage is a great place to start. A variety of storage systems exist to get stuff off the floor and give virtually anything a place of its own. There are systems of movable shelves, cabinet components, hook-and-hanger combinations, platforms that lower from the ceiling via pulleys, and more. Start the search at your local home improvement store. When done, you should have enough room for all of your stuff and your car.