Aluminum can recovery
I think that there are fairly many people who have done aluminum can recovery. I was doing in the junior high school.
The aluminum can changed to 1 yen per piece, and many aluminum cans had gathered in one week. Doing individually is serious although aluminum can recovery can be performed fairly simply. It is recommendation working in a body like a junior high school or a high school.
It is only notes' washing an aluminum can perfectly and dividing a pull tab and collecting (as far as I know). In the junior high school along which I incidentally passed, it had and went to the contractor, the collected aluminum cans were changed into money, and the money was remitted to UNICEF.