My wife and her brother are good users of Deming's admonition to use data to make decisions.
I decide on the way to the market that I would enjoy ham for dinner. They wait until they get to the market to see what looks good and what is on sale that day instead of going in with a set mind.
I guess I have too much faith in the magic power of my mind. I have trouble remembering to check what we have in the cupboard and refrigerator before going to the market but they steadily do a little inventory before trotting off to buy.
They are using actual data from the world to guide their decisions, not internal conceptions of what ought to be or what will probably be.
