Right now, you can get Purina free samples of Tidy Cats Litter when you use this free rebate here. All you have to do is purchase a 7.5 lb. bag, 12 lb. bag, or 14 lb. bag of Purina Tidy Cats brand Pure Nature cat litter. The Pure Nature cat litter will include this rebate directly on the bag. So, it’s super simple to set up as well. Send it in and the cat litter is yours for free!