POWER OF ATTORNEY

The undersigned hereby constitutes and appoints each
of Mark V. Beasley, Bradley K. Blackwell, Robert L. Estep, Mark V. Minton,
Anna Marie Dempsey, Elizabeth K. Giddens and Todd J. Thorson, or any of
them, signing singly, the undersigned's true and lawful attorney in fact
to:
(1) execute for and on behalf of the undersigned, in the
undersigned's capacity as an officer and/or director of Michaels Stores,
Inc. (the "Company"), Forms 3, 4 and 5 in accordance with Section 16(a) of
the Securities Exchange Act of 1934 and the rules thereunder;
(2) do and
perform any and all acts for and on behalf of the undersigned that may be
necessary or desirable to complete and execute any such Form 3, 4 or 5 and
timely file any such form or forms with the United States Securities and
Exchange Commission and any stock exchange or similar authority; and
(3)
take any other action of any type whatsoever in connection with the
foregoing that, in the opinion of such attorney in fact, may be of benefit
to, in the best interest of, or legally required by the undersigned, it
being understood that the documents executed by such attorney in fact on
behalf of the undersigned pursuant to this power of attorney shall be in
such form and shall contain such terms and conditions as such attorney in
fact may approve in such attorney in fact's sole discretion.
The
undersigned hereby grants to each such attorney in fact and any of them
full power and authority to do and perform any and every act and thing
whatsoever requisite, necessary, or proper to be done in the exercise of
any of the rights and powers herein granted, as fully to all intents and
purposes as the undersigned might or could do if personally present, with
full power of substitution or revocation, hereby ratifying and confirming
all that any such attorney in fact, or any such attorney in fact's
substitute or substitutes, shall lawfully do or cause to be done by virtue
of this power of attorney and the rights and powers herein granted.  The
undersigned acknowledges that none of the foregoing attorneys in fact, in
serving in such capacity at the request of the undersigned, are assuming,
nor is the Company assuming, any of the undersigned's responsibilities to
comply with Section 16 of the Securities Exchange Act of 1934.
The
execution by the undersigned of this power of attorney hereby expressly
revokes and terminates any powers of attorney previously granted by the
undersigned relating to Forms 3, 4 and 5.  This power of attorney shall
remain in full force and effect until the undersigned is no longer required
to file Forms 3, 4 and 5 with respect to the undersigned's holdings of and
transactions in securities issued by the Company, unless earlier revoked by
the undersigned in a signed writing delivered to the foregoing attorneys in
fact.

IN WITNESS WHEREOF, the undersigned has caused this power of
attorney to be executed as of the 20th day of February, 2005.

/s/
Richard C. Marcus
Richard C. Marcus