It was definitely fairly common for middle class in my neighborhood (60's, 70's US) to have a cook or a maid, at least for special occasions or maybe a few time

It was definitely fairly common for middle class in my neighborhood (60's, 70's US) to have a cook or a maid, at least for special occasions or maybe a few times a week. We also had diaper service, dry cleaner, milk, and Charles Chips: all pickup and delivery by a dedicated truck on a regular schedule. All these service jobs are gone now. Dead tree newspaper delivery is next.