I was just thinking about the 1,000's of football fans who will be travelling around the country this week end, who are not the most renowned people for cleanliness, especially after a few pints.
...but back to this point briefly. I'd guess that weekends may slow down the transmission of the virus as people spend more time at home, relative to the week when people commute and spend time in offices and schools etc, interacting with lots of other people all day long.