We just do a third can everytime too. Abbey gets an upset tummy if we overdo it. She does the clean up thing too, wipes her muzzle on the carpet, then sits down to clean her paws. She likes to do the heavy duty paw cleaning at bedtime and gets between each toe and the pads. After that she cleans her tummy.
LOL - That is so funny! I am picturing a Garfield in Abbey.