A method, comprising: inserting a shoe treatment device having an expandable, interior engagement form into the interior of a toe box of a shoe while the expandable toe box interior engagement form is in a latched, contracted state; unlatching the expandable toe box interior engagement form from the latched, contracted state; sliding a movable slide actuator and link member coupling the slide actuator to the expandable toe box interior engagement form, along an arm of the device, from a first position to a second position toward the expandable toe box interior engagement form; expanding the expandable toe box interior engagement form to an expanded state while in the interior of the toe box of the shoe as the movable slide actuator and the link member slide to the second position, to treat the interior of the toe box of the shoe; and latching the expandable toe box interior engagement form in the expanded state while in the interior of the toe box of the shoe; wherein the method is characterized in that: the link member is ribbon-shaped and wherein expanding the expandable toe box interior engagement form to the expanded state as the movable slide actuator slides to the second position, includes driving a wedge-shaped expander member coupled to the movable slide actuator by the ribbon-shaped link member, and positioned between and engaging opposing wing engagement members (812;814) of the expandable toe box interior engagement form as the movable slide actuator slides to the second position, wherein the ribbon-shaped link member drives the wedge-shaped expander member forward toward the front of the toe box of the shoe, and drives the wing engagement members (812;814) apart. inserting a shoe treatment device having an expandable, interior engagement form into the interior of a toe box of a shoe while the expandable toe box interior engagement form is in a latched, contracted state; unlatching the expandable toe box interior engagement form from the latched, contracted state; sliding a movable slide actuator and link member coupling the slide actuator to the expandable toe box interior engagement form, along an arm of the device, from a first position to a second position toward the expandable toe box interior engagement form; expanding the expandable toe box interior engagement form to an expanded state while in the interior of the toe box of the shoe as the movable slide actuator and the link member slide to the second position, to treat the interior of the toe box of the shoe; and latching the expandable toe box interior engagement form in the expanded state while in the interior of the toe box of the shoe; wherein the method is characterized in that: the link member is ribbon-shaped and wherein expanding the expandable toe box interior engagement form to the expanded state as the movable slide actuator slides to the second position, includes driving a wedge-shaped expander member coupled to the movable slide actuator by the ribbon-shaped link member, and positioned between and engaging opposing wing engagement members (812;814) of the expandable toe box interior engagement form as the movable slide actuator slides to the second position, wherein the ribbon-shaped link member drives the wedge-shaped expander member forward toward the front of the toe box of the shoe, and drives the wing engagement members (812;814) apart.