Watching what you eat plays an important part of fitness. You should eat 5 small balanced meals of grains, protein, dairy, and fruit or vegetables each day. In between meals, you should eat small snacks. All of these foods should be low in sugar and saturated fat.
Don't limit yourself to working out indoors. Every season can provide you great opportunities for getting some exercise outside. Try going to the beach in the summer and playing some volleyball with friends. Local hikes are always a wonderful option during the fall. Skiing and snowboarding can burn some serious calories during the winter.