Swap your chocolate or cereal bar for a handful of dried apple rings with a few almonds or walnuts. Dried fruit is four times as sweet as its fresh equivalent - which is great if you've got an exercise class or a gym session planned for the afternoon. Combining dried fruit with nuts helps stabilise the release of their sugars keeping you energised for longer. Alternatively stock your fridge with plenty of low calorie nibbles like cherry tomatoes, apples and vegetable crudités, which will prevent you reaching for the biscuit tin when you fancy something sweet or crunchy.