As consumer habits change, the top chains are losing the battle for market share, but technology can help to keep shoppers happyAs Sainsbury's chief executive Mike Coupe recently declared, retailers are facing a "perfect storm" ...
We fork out a lot of money for our lunchtime salads, and among the vile vinaigrettes, cacophonous flavour clashes and dreary, pallid veggies, a few manage to be worth it.