Comment by dgllghr

If you are seriously interested in this, then I would appreciate your answers to these questions! What is the specificity of your shopping list? Cheerios 12 oz, Cheerios, cereal, etc.? If cereal, is it a standin for the all the cereals you usually buy? How consistent is your list? Do you change what you buy significantly from week to week? What causes you to substitute other items for your usual items? And do you do it to save money, try new things, a little of both, something else? If you had Cheerios 12.5 oz on your list, but one of the retailers near you had a significant promotion on the family size, would you want that instead? Let’s say you put “healthy cereal” on your list and you wanted the best price on all healthy cereals. Does that mean organic, low sugar, whole grain, something else? Do you think it would be possible to figure that out from your purchasing history? How much money do you think you would have to save to visit 2 stores? Do you have loyalty program membership at all your nearby grocery retailers?