Amazon offers the Purex Fabric Softener Dryer Sheets 40-Count Box in Mountain Breeze for $1.47. Order via Subscribe & Save to cut the price to $1.40 and bag free shipping. (Walmart charges a few cents more via in-store pickup.) That's the best deal we could find by a buck.
Note: Be sure to cancel your subscription once your order ships to avoid being billed for further shipments.