I did 4x10 and I found it horrible. During the four days, I didn't get to do anything other than work and commute. And the stupid thing was that my output (and

I did 4x10 and I found it horrible. During the four days, I didn't get to do anything other than work and commute. And the stupid thing was that my output (and that of my coworkers as far as I could tell) was not really higher with 10 hours than with 8 hours. Three day weekends are nice though.