The shopping card can only be used for Gracie Grace's in the city. If it is in your inventory when you go to purchase an item at Gracie Grace, you will have the option of paying by shopping card. This means that the money will be taken out of your bank account (ABD) instead of the money being taken out of what you have on you at the time.
CITL-DT was created on 1976-07-28.