Amazon offers its Amazon Prime members Belkin 6-Outlet Surge Protector, model no. BE106000-2.5, for $4.99 with free shipping. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $5.58.) That's tied with our May mention as the lowest total price we could find, this time by $4. This surge protector features a 2.5-foot cord, 555-joule energy rating, and more.

Amazon Prime membership is $79 per year; however, Prime is free for college students for one year, and free for parents and caregivers for three months. (Note that currently there's a waitlist for Amazon Mom.)