Get rid of some of your old DVDs through Amazon and get a gift certificate. They will accept regular DVDs, HD and Blu-ray movies and TV shows with original container and worth at least $10.00. Shipping is free and your account is credited within a couple of days. Looking at their offer, we found the average price, no matter what format, was about $5.00, depending on age, but some were as low as $2.50. We found a Harry Potter Gift Set, that sells for $112.49, was worth all of $13.50. Still, it will give you the ability to buy a DVD you haven’t seen.