The title could become the mantra of conscious consumption.
Because every time we consume on impulse, off the list, in general we are not doing it consciously. At that moment we should listen to the mantra: inside the list everything, outside the list nothing.
As it is on the list, at some point the need for that object and / or service was felt. And we can go one step further: if we are at the fair or in the supermarket, we check the expiration date of that item and no one better to play “treasure hunt” than our children. This way they will be able to get into the habit of consulting this information and they will learn with us. And to avoid waste, the ideal is to make purchases for the next seven days, and within our possibilities well accompanied, that is, by our children.