A bag support device for supporting a plastic bag within a trash container, the device including a pair of elongate clamp arms structured and disposed to apply a clamping force on opposite sides of a wall of the container, and a hook member extending upwardly from a lower end of one of the clamp arms within the container, the hook member being structured and disposed to support a portion of a handle of a plastic bag placed within the container, wherein at least two of the support devices attached to opposite side walls of the container support opposite handles of the bag such that an open end thereof is held open such that items may be deposited therein.