Ever had a roommate who would finish the milk and put the empty carton back in the fridge? It's a cruel form of laziness, but now there is a truly simple solution to keeping the larder fully stocked. The Ikan sits on your counter and allows you to scan empty food containers before you thrown them out, then makes a shopping list for you (you can also use it to order from a delivery service like Peapod). It also tells you whether the container is recyclable. Apples don't have bar codes, you say? It also has voice recognition. The moment of stomach-churning frustration that comes when the sushi delivery arrives and you find no soy sauce in the bag and an empty bottle of soy sauce in the cabinet will now be a thing of the past. $400; ikan.net