Abstract: An improved combination card and card retaining member for removably securing the card to the card retaining member, the card having formed within it an aperture and a slot connecting the aperture with an edge of the card, and the card retaining member being a member, such as a ring, which may be passed through the slot and into the aperture to secure the card to the card retaining member. The aperture and slot are configured and located on the card in such a manner as to improve the ease of attachment and detachment of the card to and from the card retaining member while minimizing the risk of accidental detachment of the card from the card retaining member. One or more cards may be used simultaneously with a single card retaining member. A preferred use of the invention is to retain and organize credit cards.