I often argue that, since I have an education and am able to do significantly paid work, I better not clean my house.
This is, since the opportunity cost of one hour of me cleaning the house is a lot higher than the reward of just doing it myself.
Ofcourse this is a white lie, since not áll of my hours are as effective and thus the opportunity cost-theory just doesn’t apply.
But what if we would approach it like this:
Our focus on one thing has the opportunity cost of another.
Going for groceries, has the opportunity cost of relaxing.
Relaxing has the opportunity cost of exercising.
Helping out a customer has the opportunity cost of working on long-term plans.
You could re-read yesterday’s “Follow the money” post, and then change purchasing stuff to focusing your mind-space (since that’s a scarce good).
The value that you create with your time and mind space, depends on how skilled you are in mitigating opportunity cost.