Place the mopping cloth on the floor so the folded flaps of the cloth are facing upward. Open the flaps.
Hold the Swiffer above the mopping cloth, and center its rubber rectangular mopping surface over the rectangular shape on the mopping cloth. Place the Swiffer down on the cloth so that the green scrubbing strip is located at the top.
Fold the flaps of the mopping cloth over onto the plastic top of the Swiffer (opposite the rubber side). Lock the cloth in place by pressing its corners into the four rubber cloth grippers at the corresponding spots.