For over a year, I had a job that was 3 days a week. I loved it. I spent the other 4 days hacking on random stuff. I never had issues with sleep dept, but I did build up house keeping dept.

I don't see how people manage to do shopping when the shops are open while you are at work. Granted, some shops are open on Saturday and in the evening, but still. Who are they selling to on workdays anyway? Jobless people?

If I could find another 3-day job, I'd take it in a hartbeat.

[edit] I was mostly joking about "who are they selling to". But you'd think staggering the weekends should be more profitable.