Discretionary effort
Discretionary effort is worth twice to us than required effort.
If Delivery Driver A delivers your parcel, fine.
If Delivery Driver B delivers your parcel, smiles, then tells you to have a great day…
Given the choice between the two?
You would choose the second one, every single time.
All else being equal, a smile and a few words — that cost zero — changed everything.
Exciting to think how far you can take this.