Cost Plus (CPWM) SC 13D COST PLUS / BED BATH & BEYOND ownership change

EXHIBIT 9

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned hereby (i) agree to the joint filing with all other Reporting Persons (as such term is defined in the statement on Schedule 13D described below) of a statement on Schedule 13D (including amendments thereto) with respect to the Common Stock, par value $0.01 per share, of Cost Plus, Inc. and (ii) agree that this Agreement be included as an Exhibit to such joint filing. This Agreement may be executed in any number of counterparts all of which taken together shall constitute one and the same instrument.

EXECUTED this 18th day of May, 2012.
BED BATH & BEYOND INC.
By:	/s/ Eugene A. Castagna
Name:	Eugene A. Castagna
Title:	Chief Financial Officer
BLUE CORAL ACQUISITION CORP.
By:	/s/ Allan N. Rauch
Name:	Allan N. Rauch
Title:	Secretary