Abstract: An accessory support is provided for attachment to a mechanic's tool cabinet for storage of a mechanic's creeper and other frequently used items, such as aerosol cans. The support base is in the form of an elongated storage tray, sized for attachment to the end of most standard tool cabinets or side boxes. Two outwardly and upwardly extending arms, adjustably mounted on the outer side of the support tray, are provided to support the caster shafts of a mechanic's creeper. A third support arm extends downwardly from the outer side of the base in the form of a hook for storing a coiled air hose or the like, and also serves to stabilize the supporting platform of the creeper, to maintain it stationary in a vertical position.