If you're using blank or preprinted preperfed business cards (such as
Avery), go to Tools | Envelopes and Labels. In the Label Options dialog,
choose the stock number of your product, then click New Document. This will
give you a full sheet of cards. They're set up as a table, so be sure you
have table gridlines displayed (Table | Show Gridlines) so that you can see
the card boundaries.