I take mine to OfficeMax with my own custom cardstock (grey marble) 'cuz they can also cut them a lot cleaner than I can at home. My cards run .03/page (8-up) for b/w copies and a flat rate cut charge ($6) for as many/few pages as I have them cut.

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Lily Chambers, The Virtual Office Goddess, LLC
Author "How to Do Your Own Small Business Bookkeeping"