It’s so important to change up your fitness ( and dietary) programs as often as possible, so as to keep the boredom away but also to keep up muscle growth and fat burning potential. If you really want to be succesful with your weight loss and fitness routines, you must periodically switch your mindset and your exercises and the results will be powerful!
I found a great link from Men’s Health magazine to give you some fresh approaches to your fitness routine. Enjoy!: 
http://www.thatsfit.com/2010/03/30/three-workout-tweaks-that-build-more-size-and-strength/
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