World's Best Cat Litter (WBCL), sign-up for a $2 coupon (PDF)
https://www.worldsbestcatlitter.com/..._campaign=tayc

The current coupon expires August 31, 2017, so check back as a new coupon may be posted after August 31, 2017.

If you've never purchased corn litter for cats, try it! WBCL offers a money back guarantee program, if you and your cat(s) don't like it.

If you are not completely satisfied with our product, return the bag and/or the original UPC code (proof of purchase) from the bag along with your store receipt to the point of purchase for a full refund in accordance with any applicable store policies.

Or, you may receive your refund by mailing the original UPC code from the bag and your store receipt (please include your name and full mailing address) to the following address within 90 days of purchase:

Customer Service
World's Best Cat Litter™
2905 North Highway 61
Muscatine IA 52761