For the past few months, Amazon.com has had the annoying habit of automatically changing the quantity of some of my purchases before I head to Checkout. So sometimes, I'll get 3 books or 4 DVDs when I only ordered one. I have written them. But right now I just need a pop-up window whenever I checkout that reminds me to verify the quantities of everything I've ordered. Would this be an Applescript? Add-on? Something else? Thanks for any help.