When we were at the shops, he wanted lots of treats. We made a deal that he can only have them if he will brush his peggies after eating and if he deserves them. And so, it started the helping hands campaign. He's been cleaning up and because he likes water, which I presume he will welcome water fountains indoor, doing all the chores that include water.
Plus, I reckon, this is a good training for him to be self sufficient when he grows into an adult.