When buying food off a menu, at the grocery story, at the farmer's market, or from your CSA how do you plan your purchase so you don't have more than you can use? None of us like to waste food. When buying bananas, I will break off only one or two, rather than buying the whole bunch. I see California green grapes have arrived, now being sold in plastic bags with 2-3 bunches per bag? Is it OK to take just one bunch out of the bag? How do you split or share meals when eating out to avoid leftovers that can't be used?