"Labor" Is a Funny Word for It

We call it Labor Day, but we take the day off. Interesting.
I love word play, as do most writers. I enjoy those lists of English eccentricities, like "Why do we park on the driveway and drive on the parkway?"
I drive my husband nuts by nitpicking at commercials that offer "lower prices than anyone!" How can you offer lower prices than your own, and aren't you part of "anyone"?
"People know what they mean," he tells me. I suppose so, but why can't they treat my native tongue with some respect?
In honor of Labor Day, I'm keeping this one short. No overtime on (Non-)Labor Day.