Social service in a coffee can

    I recently moved to a new apartment. On my stairwell - between floors, where there is a window - there were many butts on the floor. People from neighboring apartments and offices go here to smoke and throw bull-calves just under their feet.

    Yesterday I put an empty coffee can on the windowsill. Today in the bank there were several cigarette butts and a cellophane wrapper from a pack.

    Can you name what turned out to be a social service ? How would it be monetized now?

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