Walmart offers the Swiffer Sweeper Dry + Wet Floor Mop Starter Kit, model no. 3700092815, for $9.72. Opt for in-store pickup to dodge the $5.97 shipping charge. That's a buck under our mention from two weeks ago and the lowest outright price we've seen. (It's a current low by $2.) It includes a mop, seven dry cloths, and three wet cloths.