Abstract: A container lid includes a container top, a lid opening, a closure, a push button, and a lock. The container top may be sized and configured to be attached to a container body. The lid opening may be formed in the container top. The closure may be movably coupled to the container top and may be movable between first and second positions in which the lid opening is, respectively, covered or uncovered. The push button may be configured to selectively retain the closure in the first position, and may be movable between latched and unlatched positions. The lock may be movable between locked and unlocked positions and in the locked position may be configured to inhibit movement of the push button from the latched to the unlatched position.

Abstract: An agitator may include one or more members adjustable between an expanded configuration and a compressed configuration. When the one or more members are in the expanded configuration, the agitator in a first set of two orthogonal dimensions is larger than an opening having a predetermined size. When the one or more members are in the compressed configuration, the agitator in a second set of two orthogonal dimensions is smaller than the opening having the predetermined size. The one or more members are biased to the expanded configuration in absence of external force applied to the one or more members. In use, the agitator may be inserted into a container through a neck of the container in the compressed configuration. The agitator may expand within the container so that the container does not fit through the neck of the container.