Savvy
I've never heard of not hanging washing out on a Sunday before, can someone tell me why they don't do this?
It doesn't apply any more, savvy, except in the minds of the likes of Hyacinth Bucket and the promoters of "exclusive" housing.
The original reason was to keep to the fifth of the ten commandments.
Remember the Sabbath day, to keep it holy. Six days you shall labour, and do all your work, but the seventh day is the Sabbath of the LORD your God. In it you shall not do any work, you, or your son, or your daughter, your male servant, or your female servant, or your livestock, or the sojourner who is within your gates. For in six days the LORD made heaven and earth, the sea, and all that is in them, and rested on the seventh day. Therefore the LORD blessed the Sabbath day and made it holy." and hanging out washing was evidence that you had broken a commandment, instead of spending the time reading the Bible and going to church.
In Moses' time, the Sabbath was the Jewish Saturday - so really it should have been on Saturday that work was banned!