Doonesbury by Garry Trudeau for October 10, 1972
Transcript:
Joanie: At last! My first day on the job. I must say, this isn't a whole lot different than just being a hassled mother. It's the same struggle to get through the day. ...Taking care of crying infants, feeding them lunch, supervising their play, picking up after their messes, stopping their fights, making them take naps...but I'm getting paid for it! Child: How much?
I love the kid asking how much.