This is an interesting article about working only 4 days a week by Ryan Carson. It is kinda mental game. Here is the snippet of it.

So why is it important to work less? What?s the big deal?

The reason is that when you work less, it gives you more time to experience life and think; you can use the extra time to not only spend with people you love, take up hobbies, or invest in causes you believe in, but also to have ideas. Some of our best ideas have come while driving, gardening, reading, or painting on the weekend.

But what if your job is something you enjoy? What?s the harm in working hard and long at it? Well, I can fully identify with this. I absolutely love running Carson Systems. It?s fun, challenging, rewarding and profitable. I often find it hard to work less because I love what I do.

Here?s the problem though: When I?m old, I won?t wish that
I spent more time building web apps or organizing events. Spending time with people I loved or helping people is what will really have mattered to me. Working less gives you the time to do it and also rejuvenates the brain cells so that you can come back to your work with a fresh outlook. Variety is key.

You can find the full article here