It is 7.30pm on a Wednesday evening and Donna, a 47-year-old care assistant, is sitting in her Wakefield home, wrapped in a shawl.Like many across the country, she has become acutely conscious of the rising cost of living. Increasing food, energy and diesel prices are already having a significant impact on her day-to-day life.Energy tariffs that offer cheaper “off peak” rates allow Donna and many others to shift their use of household appliances to the evening, or night time. Other adjustments, though, are more dramatic, like eating significantly less hot food.“I have noticed it recently,” she said. “My kids have...