AQ 2

You are told to save resources without waste; These resources are mainly those that support your living like water, food, energy, apparel, and even money or belongings. 
This is out of the notion that there's going to be a day in which your access to them is going to be limited or possibly unattainable. And the best course of action from then on would be to ration your limited suplies; I as a matter of fact do not wish anyone to face sheer scarcity, but if your situation cannot be helped then proceed with this advice you had already been told.