It does seem to include the important mundane stuff, like hygiene and managing your money, but the kind of Self Care I'm talking about is when you are overwhelmed, triggered, upset. What things do you, or can one do?

I know removing myself from a situation is one. Others I can think of that I have learned recently:
-take a walk
-do a breathing exercise
-distract myself
-and one I've been thinking about today: Remember not to believe everything you think.