[emdubbelyou]

I was thinking of various 80% flexible working models and there are some great set ups.

4 on, 3 off is usual

But if you break it up to two week cycles you get: 4 on, 2 off, 4 on, 4 off 4 on, 1 off, 4 on, 5 off

And even wilder if you do three week cycles: 6 on, 2 off, 6 on, 7 off

Imagine a full week off every third week! Of course, this likely is not very realistic because it would not line up with collaborators well.