Have yourself a free movie! Head over to the Amazon promotional page and Tweet that you’re getting a free $3 credit from Amazon (through the button on their page) and you’ll get a $3 Amazon Instant Video Credit! I tell you most days about the $.99 movies that are available, so you’d be able to rent three of those for free or you can look through their movie selection and see what else catches your eye! You can only get this credit until the end of the day 5/1, but once you claim it, you have until 5/31 to redeem.