We use the mobile library, in retail terms instead of a self service checkout it's more like having a personal shopper - they find anything we want and deliver it almost to our door the next week
Like Howard with Sainsbury, I've almost stopped using B&Q unless I can't find the item elsewhere because of the self service checkout. Then when I go to Homebase I say I'm going back to B&Q every time I have to run the double glazing sales assault course to get back to the car.