Amazon offers Prime members the Cooler Master NotePal U2 17" Notebook Cooler, model no. R9-NBC-8PBK-GP, for $12.99 with free shipping. (Non-members can spend over $25 for free shipping; otherwise, shipping adds $9.26.) That's the lowest total price we could find by a buck. This cooler, designed for notebooks of 17" or less, features an aluminum mesh design and two configurable 80mm fans.

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.