Received wisdom had taught me that virtue was its own reward, until my local supermarket taught me otherwise. A simple system of points per purchase enabled them to reward the virtue of loyalty with a two-for-the-price-of-one holiday break in Dorset at a hotel with a sauna, a Turkish bath, and an indoor pool. The short break was primarily designed to placate my body that had grumbled its way through the vigours of a three month diet imposed by my doctor. However its better half was ‘surpri...
