Ms L's Christmas table will enjoy fresh produce sourced from three different locations, as a result of some empty shelves at her local Sainsbury's, albeit the food miles for the Brussels sprouts (M&S), Cauliflower and Cabbage (Waitrose) will be relatively minimal (or at least those incurred between shelf and front door). The brisk walk along High Holborn hunting for the missing vegetables on her list did me good, so I'd like to think that contributes to some form of offsetting...