I love the idea of a four-day workweek but I have to be honest that while my productivity might be lower on Friday afternoons, by the time I've hit eight hours

I love the idea of a four-day workweek but I have to be honest that while my productivity might be lower on Friday afternoons, by the time I've hit eight hours in a day, I'm usually mentally spent. Adding on more time to the work day might ultimately lead to less productivity overall, at least for me.