The ornamental design for the a medicineholder and organizer, as shown and described.
FIG. 1 is a perspective view of the present invention in an open position wherein one of the pill containers is removed from the pill container grid; and
FIG. 2 is a perspective view of the present invention in an open position with the pill container grid removed from the interior thereof; and
FIG. 3 is a front view of the present invention in an open position; and
FIG. 4 is a rear view of the present invention in an open position; and
FIG. 5 is a left side view of the present invention in an open position; and,
FIG. 6 is a right side view of the present invention in an open position.
The broken lines shown in the drawings depict environment and illustrate use and form no part of the claimed design.