Jug having a secondary bottle in the handle opening

A two container assembly comprising:

• a) a first container for containing a fluid, said first container having a handle integrally formed therein, a handle opening, and a top-to-bottom axis, said handle opening being used as a finger hole for said first container;
• and
• b) a second container for containing a fluid, said second container having a resilient sidewall, a top end and a bottom end, said resilient sidewall being dimensioned to be inserted into said handle opening of said first container as said resilient sidewall is partially flexed, insertion occurring to a point where a concave portion in said second container engages said handle, said engagement resulting in a snap-fit, said top end and said bottom end of said second container extending outwardly from opposite sides of said handle opening, and said second container having a top-to-bottom axis being substantially perpendicular to said top-to-bottom axis of said first container when said second container is snap-fit into said handle opening, said second container only partially filling said handle opening so that said first container may be lifted by said handle opening with said second container therein.