Walmart offers the Stanley SL18301-4B 4-Gallon Stainless Steel Wet/Dry Vacuum
, model no. 8210413, for $19.97
. Choose in-store pickup
to avoid the $5.99 shipping fee. That ties last week's mention as the lowest total price we've seen. (It's the best deal now by $15.) It features a 3HP motor, rear blower port, accessory storage casters, 4-foot hose, three extension wands, floor nozzle, reusable dry filter, and foam filter.