I was actually just looking at my info for the registry. You save 10% on everything left on your registry. But it's not until they send you a Completion Certificate in the mail and they don't send it to you until sometime just before your due date. Unfortunately I'm not exactly sure how soon before your due date that they send it to you. When you do get it though, you will use that certificate when shopping to receive the discount off of the remaining items on your registry. If I find any more information I will update you.
at 9:00 PM on Oct. 28, 2010