Wednesday before last my husband came home with 40 lbs of fresh gulf shrimp. We de-headed the shrimp and packaged them for freezing. The heads went into the garbage bin. I packaged the heads in three plastic grocery bags. Pick up was the following Tuesday. Huge stink and maggots. Had to scrub the bin. Business as usual. Have not yet figured out how to avoid stink and maggots between garbage pick up.