To create your shopping list — which you can access on the GeniCan app — swipe the item's barcode with the barcode reader. If your item doesn’t have a barcode, you can hold you item in front of the GeniCan. And after two seconds, it will ask what you want to add to your list, and you can tell it what to put on it. The GeniCan also partners with AmazonDash, so you can have items on your list easily sent to your home. Get it from GeniCan for $149 (available in three colors).