Saw Dust Toilet

Here is recycling at it best. Instead of taking thousands of gallons of fresh drinking water that has been pumped miles to your house, then polluting it by adding in a cup or less of pee or poop, then sending it miles back to the sewage plant to be mixed with other toxic waste, then using lots of energy and resources to clean it up, then dumping that in the lake..... you can cut way down on water consumption and recycle what comes out of your body?
See the cute video on the Loveable Loo.

Also see my post on "How to save the world with a sawdust toilet."