If you bought with a credit card they can look it up in their computer. You can return without a receipt, you just have to take the lowest selling price if it went on sale and you get store credit unless you can talk them into a credit to your charge or cash. And they are not strict on the 30 day policy, most of the time they don't even look at the receipt date. It's true they won't return some of the designer stuff and certain handbags, but this stuff is marked on the tag "final sale" everything else can be returned including the jewelry from the case, I have never seen any of that marked final sale. It is really just all about who you go to there, some cashiers are nice and others aren't. If you're friendly and get talking to them they won't pay attention as much and then you'll get it returned.