Mental Models
I have known a few but while reading through a long list of mental models the post’s author finds repeatedly useful, I came to know that I use following models very frequently. The use is sometimes conscious, at other times I fall prey to these. But since these concepts have names, I can very easily spot when I am in proximity of any such model. Giving wikipedia links only for those which, I think, are possibly are new to you.
A bunch of cognitive biases
Normal Distribution
Thought experiment
Critical mass
Activation energy
Observer effect
Trade offs
All models mentioned under category developing
MVP
Paradox of choice
Imposter Syndrome
Murphy’s law
Hygiene factor