Imagine an application that can help you with a better dietary behavior. Or maybe better: by sharing your buying behavior to a few retailers may result in a reduction in price.
You could even visualise where your food is grown and processed and get an idea of all the food-miles.
A new grocery store in your neighbourhood might want to see what you buy most, so it can put it on its shelves especially for you.
And the daily question "what will we eat today" may be answered by an application that grasps your food patterns.
It may even unlock the potential of smart fridges, as the produce bought, and estimated lifetime are now computable.