Sushe: That is fine since a Tallis bag is a Tashish D’tashmishei Mitzvah, which probably has no Inyan not to use for Chol anyway, and even if it does the Tefillin mirror (and possibly the business card as well if it’s only purpose is to ensure that the Tefillin can be returned if lost) is a Tashmish Mitzvah anyway.
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