Every time you eat, including planned snacks, make sure you have some protein.  Protein helps to keep blood sugar levels even, which prevents hunger and prevents excess fat storage.  Having a little low fat cheese with fruit is a good choice, or even better, have some nuts with your fruit, which gives you those amazing curative monunsaturated fatty acids (MUFAs).  Also, a plain boiled egg, spiced up with a little brown mustard, makes an easy, nutritious, and filling snack!