Ok...so after complaining to Target, this is the response I received via email:
"I'm sorry for any disappointment, but we are unable to assist you with an exchange or store credit.Unless an item is listed on your registry purchase log, our return policy requires a receipt dated within 90 days for any return. As a guest service, you were able to return a few items without a receipt. Our computer system tracks every return using your driver's license or photo ID. Now you've reached your maximum number of returns without a receipt - that's why you now need to have a receipt for any item not listed on your registry purchase log. Great products. Great value. And a great shopping experience - every time you visit our stores. That's what Target is all about. Your feedback is a big help to us, and I'll make sure to share your comments with our executives. Please let us know if we can be of any help in the future.Thanks again for shopping with us. I hope you'll visit us again soon at Target.Sincerely,Tom Target Gift Registrieswww.target.com"
Gee, thanks for the help Target. I'm still stuck with things I don't want. I guess I'll be making a trip to the resale shop sometime soon. *sigh*