Tesco launches shopping trolley sat nav

"When a customer enters a Tesco store, the app will create a store map with all of the items on the shopping list laid out on it. After pressing the start button, the app will then find the shortest distance between the products and the shopper, and create a route for the trolley to follow. Other items can be added to list at any time and located within the shop. "

http://www.telegraph.co.uk/technology/news/8535252/Tesco-launches-shopping-trolley-sat-nav.html

Ziplist - Groceries, Recipes & Shops

“ZipList was developed to help you and your family manage all aspects of your grocery shopping in one convenient, central place from any web browser or mobile phone. More than a grocery list, you can also search for recipes, save them all of them in a single place, and their ingredients to your list in a single click.”

http://www.ziplist.com/