Waschtag means Washday in Pennsylvania Dutch. In Lancaster County, Pennsylvania. Washday was once a week, on Mondays, and it took the whole day.
In my house every day is washday. If I didn’t work outside the home, I would likely adopt a cleaning method where I did major tasks all in one day. That will have to wait for retirement. When do you do laundry? All at once or spread out over the week?