Site-built shelves work well because they allow you to adapt shelf size to the space available, making it easier to use the space more efficiently. The necessary materials should be available at your local hardware store, home center, and/or lumber yard.
Yes, you are using the garage for storage already, but the space is not being used efficiently and you can never find what you want. It seems to have become home for all types of sports equipment, tools, machines, and a collection of family stuff. The garage's original purpose for parking the cars and a small workout area seem to have been lost in the mess of it all.
Cabinets - Wooden cabinets can be open-faced, have glass doors, or have wooden doors. Open-faced cabinets are often designed as cubbies where you can store towels or larger containers. Glass door cabinets are usually mounted on the wall, but they can also stand on the floor or over the toilet. The wide range of styles makes these the most versatile for small to medium-sized bathrooms.
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