As one of its daily deals, Amazon offers Prime members the Belkin 6-Outlet Commercial Surge Protector (pictured), model no. BE106000-2.5, for $5.49 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $6.79.) That's $2 under our February mention and the lowest total price we could find by $5. It features a 2.5-foot cord, 720-Joule energy rating, and 3-line AC protection.

Also available is the Belkin 12-Outlet Surge Protector, model no. BE112234-10, for $17.98 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $6.79.) That's the lowest total price we could find by a buck. It has a 10-foot cord. Both deals end today.