We claim the ornamental design for a drawer organizer, as shown and described.
FIG. 1 is a front perspective view of the drawer organizer.
FIG. 2 is a right side elevation view of the drawer organizer of FIG. 1.
FIG. 3 is a front elevation view of the drawer organizer of FIG. 1.
FIG. 4 is a back elevation view of the drawer organizer of FIG. 1.
FIG. 5 is a top plan view of the drawer organizer of FIG. 1; and,
FIG. 6 is a bottom plan view of the drawer organizer of FIG. 1.
The left side elevation view is the same as the right side elevation view of FIG. 2. The broken lines are included in the figures for the purpose of illustrating non-claimed subject matter and form no part of the claimed design.