If you feel like you do need to TONE up, as opposed to lose weight, then exercising is the best way to do so. Just half an hour a day to make sure that you get out of breath will decrease your chances of heart disease and numerous other health problems.

Exert your heart a little by running up some stairs. Maybe walk to a casting as opposed to driving, or invest in a bicycle instead of walking. Otherwise, a gym membership is useful in the sense that it will also provide you with a wide range of exercise classes to choose from.  

If you are doing a lot of underwear modelling, whether you are male or female, it is essential that you stay toned. Clients will not take on models with beer bellies or flabby edges! Remember, a flat stomach is also essential, because you, as the model, will be trying to make a product look good and we all know how easy Calvin Klein models make it look!!