Whatever you do, don't bring this topic up to my wife right now. A couple nights ago she went off because an order had an estimated delivery date of two days, it didn't show up then Amazon changed the delivery date to 4 days later. With Christmas, she is wound tight over this and won't relax until all presents are accounted for under the tree.

Amazon has been very bad the last few months with meeting their prime delivery dates. I've had many prime orders get to checkout and not even have a prime shipping option. And if they do, and I picked next day, it turn in to three days because they hand it off to the USPS