This isn't really a "deal", just something I hadn't realized before. You can use your AmEx rewards points at Amazon. I was just fooling around at Amazon testing the Air bundle deal and when I went to Checkout, there was an option to use my AmEx rewards points. They would have been worth $600 in value towards my purchase, reducing the cost of a Pro lens from $1300 to $700. That seemed like a good value for AmEx points which often aren't worth good value. I wish I'd noticed long ago. Any other places that enable use of AmEx points?