I call these boxes "Stationery Stations", since it's so complete with your standard cards, 3" x 3" cards, small gift tags, "address book", a pocket for your postage stamps and matching pen.
The one here is made with the Christmas Jingle Simply Scrappin' kit (item #115696).
Here are the cards I made and included inside and "tags" ...
Notice the matching envelopes.
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