Diantha did the "over and over seam" up the middle.
"What _do_ you do it for anyway, Mother--I always hated this job--and you don't seem to like it." "They wear almost twice as long, child, you know.

The middle gets worn and the edges don't.

Now they're reversed.

As to liking it--" She gave a little smile, a smile that was too tired to be sarcastic, but which certainly did not indicate pleasure.
"What kind of work do you like best--really ?" her daughter inquired suddenly, after a silent moment or two.
"Why--I don't know," said her mother.

"I never thought of it.