Online initiative to ease home shopping woesSainsbury's is planning to cut the costs of running its online shopping business by rolling out a new unattended delivery system throughout the UK. The supermarket giant has tested a swipe card controlled locking system attached to the shopper's home, to which the retailer will connects a locked steel box containing groceries, according to the Sunday Business. The company has been trialling the system since last November, as revealed by silicon.com. Fulfillment has proven one of the biggest challenges for online retailers, with various schemes - including deliveries to local garages - being trialled as a solution to the problem of customers being out when deliveries are made. The Sainsbury's system was developed by Homeport, and is also being tested by Royal Mail and Parcelforce.