Puss in Boots, Jr., and the Good Gray Horse by David Cory

THE three little kittens washed their mittens And hung them up to dry. "Oh, mother dear, do you not hear That we have washed our mittens?"

Sure enough, all the mittens were washed and neatly hung on the clothesline. But the clothesline was so high that Puss had been forced to climb a stepladder. The kittens had stood below, their little paws full of clothespins, and every time Puss needed a pin one of them had climbed up and handed it to him.