Abstract: A car-washing device includes a one-gallon reservoir and flexible tubing leading from the reservoir to a sponge. The sponge has a central passage formed therein to securely receive a portion of the tubing that has been provided with a plurality of small openings. A detergent formula thus flows in the tubing from the reservoir and through the small openings into the sponge. A removable and replaceable protective jacket, in the form of a nylon sleeve, protects the sponge. A valve member is provided between the reservoir and the sponge to selectively cut off the flow of detergent to the sponge. In use, the reservoir may be placed on top of a car and the sponge may be manipulated to clean the outer surfaces of the car. Because the detergent flows from a passage in the center of the sponge, the sponge is, for the most part, self-cleaning.