Play Doh

Nathan again. Ok he took out all his playdoh today. He was playing very nice by himself while I cleaned up the kitchen. When I finally looked back over I noticed playdoh now on the floor. I told Nathan that he needs to clean up his mess before he goes to do anything else. Nathan picked up one toy and then started to walk off. Again I told him that if he didn't clean it up then I would throw it all in the trash. He looked at me and then the mess and said ok Mommy. I said ok what? He said go ahead and throw it in the trash! Ugh! I need to figure out another approach.