Today only, until 5 pm ET, Amazon offers its Amazon Prime members the Belkin Pivot-Plug Wall-Mount Surge Protector, model no. BP106000, for $15.99 with free shipping. (Non-members can spend over $25 for free shipping; otherwise, shipping adds $7.35.) That's $2 under our August mention and the lowest total price we could find by $2, outside of the price below. This 6-outlet surge protector mounts directly to a wall outlet and features pivoting outlets.

Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months. (There is no longer a waitlist for Amazon Mom.)

A close price: Nothing But Software offers it for $17.31 with free shipping.