We used to laugh at the overabundance of the TEM chart but really, most of us use it. If I see a guy getting overloaded I will joke with him and ask if he's "in the green". Makes him feel a lot more comfortable saying "no, I néed moe time".
Years ago at AWA we had a couple of guys who were PHDs in psychology. They set up this elaborate CRM course. We would do a CRM class with the FAs and they would do a profile of each of us based on some questions and then they would assign you an animal code. most pilots were Panthers, F/As were mostly Dolphins, and I forget the other two. It was pretty amusing because if you knew the person it was spot on.