When I was about 7 my dad made me a trailer out of a 5 gallon bucket and a set of wheels from the "curbside city provided trashcans" and made the hitch out of a narrow metal rod. I used to pick up cans on the side of the road in my neighborhood with it and my bike and take them to the recycling center about 3 blocks from my house.
He took me to the bank and I used the first $100 I saved from the cans to start my first bank account.