Just the basic things you need to know in order to have a minimally miserable experience at work; for example, in my first job I didn’t know my manager wasn’t allowed to not let me go on break, and she would keep me from my break frequently. I also didn’t know I couldn’t be scheduled to get off work till 9 and then be forced to stay till 11 without overtime.
What are the most crucial pieces of knowledge everyone needs in their back pocket?