Child Proof Gates Child Proof Trash Can?

Child proof trash can? - child proof gates

no idea where I'm find one to test children, or how to present the proof of my children.
Now I have in the dressing room, which is stored between the door and the inner door of the room is not heated. I have a child at the door of the house now and just leave open the door and the garbage like that. But when winter comes around which I would be opening and closing the door and let out the heat. We have no place under the kitchen sink because of the garbage disposal ... I have tried to find a tendency "to" garbage, but I found the port locally and online are expensive!