Abstract: A computer system for making a shopping list and a method of using this system are provided. This system includes an input receiving component operable to be in communication with a scanner wherein it receives product identification data from the scanner, a processing component operable to be in communication with the input component for processing the data so as to form a shopping list, and a sorting component operable to be in communication with the processing component for sorting the data in the shopping list by one or more attributes of the product identification. A method of making a shopping list is also provided and includes obtaining scanned input identifying a product, processing the scanned input according to the inputted one or more identification attributes, and forming a shopping list. This method further includes sending a first data signal containing data of a shopping list to a store and receiving a second data signal from the store in response to the first signal.