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>Yes, that's what they want you to do, so in the best interests of your credit card is not to go to the store. :)
>If I see an ad "Buy now and save 25%" I think, "Hmm, if I don't buy the item (which I don't really need right now) I will also save the rest 75%"... :)

I often go to the grocery store and as I pass things on the aisle, I see things that I forgot to add to the list that are needed. Remember that the scanner is attached to the fridge. What happens if you run out of soap, laundry detergent, shampoo, etc?