Help your refrigerator breathe.
Periodically clean the coils behind your refrigerator and air intake on the bottom. This will save energy and also extend the life of your unit.
The veggies have frostbite. Keep the refrigerator between 38°F and 42°F, and the freezer between 0°F and 5°F. A 10°F drop in temperature will add an additional 25% to the cost of running your refrigerator.