A method for disposing of waste material, where the head of a frame is inserted in a bag until a closed front edge of the bag receives a leading edge of the head and the head is at least substantially contained within the bag, with the head fitting loosely within the bag along its side edges. The rear edge of the top panel of the bag is connected to the frame. After the waste material is received on the top panel, and while maintaining the connection between the rear edge of the top panel and the frame, the bag is inverted by moving the rear edge of the bottom panel frontwardly of the head and of the front edge of the bag before moving the rear edge of the bottom panel rearwardly over the top panel, the head and the waste material.