what are the advantages of a four-day working week?

Less time spent commuting, less work clothes to wash and press, less lunches to pack, less traffic on the roads, less demand for electricity, and so on. Going into the office to get in 10 hours of work is a lot more worth while than going into the office to work only 8 hours. Plus, I get 3 day weekends, long enough to visit family out of town. 

U can masturbate every ay

There is one less day to spread the horrible corona virus to your co-workers. The other four days though they are definitely gonna get it.