One of the major benefits of being an Amazon Prime subscriber is free 2-day shipping on all purchases. Now Amazon is offering Prime members the option to select "FREE No-Rush Shipping" in exchange for a $1 credit to be spent at the Amazon MP3 Store. Your items will ship in 5 to 7 days at which point you'll get an email confirming the $1 credit added to your account which must be used by the 31st of January, 2012.