If you just need a different size, you could order the wrong size and just bring them to a local store that carries Crocs and have them exchange the size. I have had luck with this as they can just resell the other size.
The Cascade still rings up full price for me too, but I keep bringing it up to the clerk every time I check out and saying it should be clearanced b/c it's obviously Christmas. I've had some luck with them marking it down 75% at the checkout.