Video games have come a long way in their relatively short lifespan. In the beginning, there was nothing to choose from except for simplistic shooting games. But as technology progressed, sports games, puzzles and games with complex storylines came about. Today, there are video games on every subject imaginable. Critics, however, have long lamented the fact that video games discourage us from more active pursuits.

When it comes to exercise equipment, sometimes simpler is better. Simple equipment can be adapted for a variety of exercises, so you don't have to go out and buy something else when you're ready to pursue a different goal (such as working on a different muscle group). And few exercise products are simpler than the stability ball.

When some people decide that they want to lose weight, they join a diet program. Others sign up for aerobics classes. And others go out and buy expensive exercise equipment. These things may very well be effective, but if you want to lose weight, you really don't need anything more than your two feet.

Once primarily reserved for bodybuilders and athletes, weight training is now a common practice. Some use weights to create bulk, but a growing number of fitness buffs are using them to build lean muscle and burn fat. Barbells and dumbbells are still the most common types of weights used, but the kettlebell has also become quite popular.