The ornamental design for a reusablestoragebag, as shown and described.
FIG. 1 is a front, right, and top perspective view of a reusable storage bag, showing my design.
FIG. 2 is a front elevation view thereof.
FIG. 3 is a rear elevation view thereof.
FIG. 4 is a left side elevation view thereof.
FIG. 5 is a right side elevation view thereof.
FIG. 6 is a top plan view thereof.
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is another front, right, and top perspective view of the reusable storage bag of FIG. 1, wherein an opening of the reusable storage bag is opened.
The broken lines shown in the drawings are included for the purpose of illustrating portions of the reusable storage bag that form no part of the claimed design.