Provided is a dynamic shopping cart with collapsible walls. A sense element is interposed between the substrate structures and is spaced apart from the reference element. When the instruction signal to be periodically output from the microcomputer is output within a predetermined time longer than the instruction-signal output period, the switching circuit is turned ONOFF in accordance with the instruction signal, and when no instruction signal is output, the switching circuit is turned OFF. In the first operating mode the hand tool is best adapted to dispense plastic fasteners to maintain an article of clothing in a folded condition. In combination these traits set \u2018Admiration\u2019 apart from all other existing varieties of Berberis known to the inventor.