Amazon offers Amazon Prime members select Blu-ray movies for $9.99 or less with free shipping. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping starts around $3.) The sale puts many titles at the lowest total price we could find. Notable titles include Braveheart (pictured), Serenity, Independence Day, The Incredible Hulk, and more.

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. (Note that currently there's a waitlist for Amazon Mom.)