Abstract: Display systems. One version includes a frame having a wall section and a foot section; a board system attached to either the wall section or the foot section; a first display item attached to the board system; and a first retractable wheel assembly attached to the frame. Other versions are included. Methods, one version of which includes assembling a display system that includes a frame having a wall section and a foot section; a board system attached to either the wall section or the foot section; a first display item attached to the board system; and a first retractable wheel assembly attached to the frame. The version also includes raising the display system by adjusting the first retractable wheel assembly; transporting the display system to a store where it will be displayed; and lowering the first retractable wheel assembly in the store by adjusting the first retractable wheel assembly. Other versions are included.