In one of the sideline consulting gigs I've done over the years (hello GF!) a review of an organization's payroll yielded instant low hanging fruit. Like many health care organizations they had their OT based on the 8/80 rule. It's an alternate to the OT after 40 hours in a week that works like this:
OT is paid if an employee works over eight hours in a day
OT is paid if an employee works over 80 hours in a 14 day pay period
OT is not automatically paid for working over 40 hours in a week.
That means if someone works six, eight hours day in a week they do not get OT even though they worked 48 hours.
So, this place was on the 8/80 rule...and they scheduled all their employees for 12 shifts. I was a hero just for not being as stupid as they were.