What are you doing to get Fridays off? (4-day work week)

My place just instituted the option of working 4 10-hour days instead of 5 8-hour days. I could do that to get Fridays off... but I won't. I'd love to have Fridays off, but not at that price. 8 is about all I can stand.

I WFH and just don't do anything on Fridays.

I negotiated that as condition to getting hired.