Cards sets are new this week. People have been suggesting them from the get-go, but they present problems in the set-up and management that you can't know until you offer them. Warms Tones (Set of 8) One problem with card sets is inventory. Either you extract the note cards for each set from the individual card inventories and set up a separate inventory for each of the card sets, or you manually change the inventory of each card in the set when a set is sold. The former is e