I can't figure out Amazon. I've got two items in my cart from a wish list and I can't find how I can pay for them. HALP MEEEEEEE!!!!

ETA: My two fun things I can't afford, so I bought batteries, instead. Curse you, "Add-on Items!!!"

ETA ETA: For those of us who were waiting for payday to come around to get things for Free Sample Thief, this is the link.