Amazon offers its Prime members the Kingston 16GB DataTraveler 101 Generation 2 USB 2.0 Flash Drive, model no. DT101G2/16GBZET, for $10.74 with free shipping. ($0.67/GB). (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $8.22.) (Buy.com has it for the same price.) That's the lowest total price we could find by a buck.

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.