We have several huge black garbage bags full of aluminum cans. We've also got some tin cans in other bags. We used to go "canning" along the roads in GA where we lived and I made on the average of $ 150.00 per week doing that. That was back when aluminum cans were selling for 64 cents a lb. Now they're not anywhere near that! Tin cans are only about three cents a lb now. But, every little bit helps. We also pick up used car and lawn mower batteries. Like my grandfather always said...if they're going to throw it away and you can make money on it, then make the money. I agree.