A consumer product packaging kit comprising a closure, an outer container and an inner container capable of releasably engaging with and inside of the outer container, wherein: A) the outer container comprises: a) an open mouth at the top of the outer container, b) a shoulder, c) a body, d) an open base at the bottom of the outer container, e) an annular extension longitudinally offset from the open mouth, and f) an engagement structure; and B) the inner container for containing consumer product comprises: (i) an open top end releasably engaging with the annular extension to secure the inner container to the outer container when the inner container is in a fully engaged position, (ii) a side wall, (iii) a closed bottom end, and (iv) an engagement coupler cooperating with the engagement structure to secure the inner container to the body of outer container when the inner container is in a fully engaged position, characterized in that: a) the engagement structure is in the lower portion of the body and the engagement coupler is in the lower portion of the side wall, and (b) the engagement structure cooperates with the engagement coupler by shape-locking or by a threaded connection, wherein: when the engagement structure cooperates with the engagement coupler by shape-locking, the engagement structure comprises at least two horizontally spaced apertures on the inside wall of the outer container for snap-locking the at least two outwardly extending protrusions of the engagement coupler at the side wall to bring the inner container into the fully engaged position. A) the outer container comprises: a) an open mouth at the top of the outer container, b) a shoulder, c) a body, d) an open base at the bottom of the outer container, e) an annular extension longitudinally offset from the open mouth, and f) an engagement structure; and a) an open mouth at the top of the outer container, b) a shoulder, c) a body, d) an open base at the bottom of the outer container, e) an annular extension longitudinally offset from the open mouth, and f) an engagement structure; and B) the inner container for containing consumer product comprises: (i) an open top end releasably engaging with the annular extension to secure the inner container to the outer container when the inner container is in a fully engaged position, (ii) a side wall, (iii) a closed bottom end, and (iv) an engagement coupler cooperating with the engagement structure to secure the inner container to the body of outer container when the inner container is in a fully engaged position, characterized in that: a) the engagement structure is in the lower portion of the body and the engagement coupler is in the lower portion of the side wall, and (b) the engagement structure cooperates with the engagement coupler by shape-locking or by a threaded connection, wherein: when the engagement structure cooperates with the engagement coupler by shape-locking, the engagement structure comprises at least two horizontally spaced apertures on the inside wall of the outer container for snap-locking the at least two outwardly extending protrusions of the engagement coupler at the side wall to bring the inner container into the fully engaged position. (i) an open top end releasably engaging with the annular extension to secure the inner container to the outer container when the inner container is in a fully engaged position, (ii) a side wall, (iii) a closed bottom end, and (iv) an engagement coupler cooperating with the engagement structure to secure the inner container to the body of outer container when the inner container is in a fully engaged position, characterized in that: a) the engagement structure is in the lower portion of the body and the engagement coupler is in the lower portion of the side wall, and (b) the engagement structure cooperates with the engagement coupler by shape-locking or by a threaded connection, wherein: when the engagement structure cooperates with the engagement coupler by shape-locking, the engagement structure comprises at least two horizontally spaced apertures on the inside wall of the outer container for snap-locking the at least two outwardly extending protrusions of the engagement coupler at the side wall to bring the inner container into the fully engaged position. a) the engagement structure is in the lower portion of the body and the engagement coupler is in the lower portion of the side wall, and (b) the engagement structure cooperates with the engagement coupler by shape-locking or by a threaded connection, wherein: when the engagement structure cooperates with the engagement coupler by shape-locking, the engagement structure comprises at least two horizontally spaced apertures on the inside wall of the outer container for snap-locking the at least two outwardly extending protrusions of the engagement coupler at the side wall to bring the inner container into the fully engaged position.