Abstract: A portable automobile accessory which is insertable into the interior of an automobile to function as either an armrest or a tray, is comprised of a resilient body member, defined by four planar surfaces and one non-planar surface arranged to form two wedge-shaped ends positioned perpendicular to each other, and a rigid planar support member secured to the resilient body member. When the thin wedge end of the accessory is inserted intermediate bucket-style seats in an automobile, a smooth top surface is available to the user as an armrest. When the wide wedge end of the accessory is placed intermittent the user's leg and the car door, the rigid planar surface of the support member is available to the user as a tray for eating, writing or other similar activities.