Warning! This post has a great "yuck" factor. You've been warned.
Seriously: what do you do with your leftover cooking oil? Most people just pour it down the drain (not pointing any fingers, here). This is quite bad for a couple of reasons: first because it can affect waste water treatment plants and second because a potential fuel is lost. We have written a lot about how used oils can be made into car fuel before; today we have three more examples about global initiatives to raise awareness about recycling used oil.