Might As Well
Finally I thought of a clever way to make the point. When my husband arrived home that day, he found me seated in the tall grass, busily snipping away with a tiny pair of sewing scissors. He watched silently for a short time, then went into the house. He was gone only a few moments, and when he came out again he handed me a toothbrush.
"When you finish cutting the grass," he said, "you might as well sweep the sidewalks.