Abstract: A shopping cart is disclosed with a point-of-purchase advertising display which includes an octagonal, transparent display tube, rotatably mounted adjacent the cart's handle. The display tube is mounted on a shaft which is journaled on brackets on the cart's frame, thus isolating the tube from stresses arising from abuse of the cart. Advertising strips are mounted within the display tube for viewing as the tube is rotated by the cart's user. These strips may be replaced through use of a temporary support, as trunnions supporting the shaft are shifted outwardly to permit removal of the end cap of the display assembly. In another embodiment, a portion of the end cap is separately removable to permit replacement of the advertising strips. In a third embodiment, the shaft is omitted and the end caps are journaled on trunnions projecting from brackets on the frame of the cart. Also described is a method for assuring free rotation of the advertising display, when it is mounted on the frame of a cart.