My Fridge Smells Bad...

So, yah... my fridge smells extremely awful... and instead of trying to find out the cause one of my very intelligent roommates puts a "Fridge Odor Remover" Arm and Hammer baking soda thing in there hoping that it eliminates the smell...

So, some may ask... "Hey R.J., why don't you try to find out what is causing the odor?"

My reply: Laziness