As I recall, neither hanging out washing, nor car washing, nor noisy grass cutting [with or without a share of a mower] were "done" on Sundays in RAFG ....... never sure if a German Law, a MQ law, or a custom.
Very civilised. We were happy to fall in line although, as a some-time shift-worker and a Christian, keeping the Sabbath Holy was sometimes problematical.
But then I don't think shops should open on Sundays and am clearly a member of a diminishing minority. Apart from anything else, my son, a fairly senior supermarket manager, has not had Christmas Eve/ Christmas Day/ Boxing Day off as a set in his managerial life. Not an option.