The average American replaces his or her cell phone every 18 months. The EPA estimates that there are approximately 500 million cell phones going to waste inside American homes at this very moment! Odds are that you have an unused cell phone sitting around in a sock drawer or stacked away in a box right now.

But don't throw that unused cell phone in the trash -- electronics aren't biodegradable and they even contain toxic parts that could leak into landfills and pollute our environment! Instead, put your old cell phone junk to better use.