Amazon offers this Belkin 6-Outlet Surge Protector, model no. BE106000-04, for $5.82 with free shipping. (Non-members can spend $25 or more; otherwise shipping adds $5.74.) That's the lowest total price we could find by $2, outside of the price below. Sales tax is added where applicable. This surge protector features a 4-foot cord, 720-joule energy rating, recessed power switch, and more.

A close price, Walmart offers it for $5.92 plus 97 cents for shipping, or choose free Site-to-Store pickup.