Hi Janet,
I believe you are talking about the Disney Dining Experience Card. As an annual passholder, you can currently buy it for $60. The card works very differently from the DIsney Dining Plan. The Experience Card will save you 20% off most table service restaurants in WDW. This year, they automatically include a 18% gratuity to your bill when you use the card. A party of up to 10 can benefit from one person in the party having the card.
I also have an annual pass. My husband and I decided to only get one card because we are always dining together. My third day of having the card I learned that the
Yak and Yeti, in Animal Kingdom, is one of the few restaurants that doesn't take it.
A full description of the card is on the annual passholder site. I am not able to supply a link directly to it because you need to first enter a valid passholder card number to enter. Just look under special offers and benefits.
I am currently in the middle of my first family vacation without the dining plan. I've found so far that I am saving money by using the experience card instead. It really depend on your family's eating habits. We rarely get dessert and don't eat at that many counter service restaurants.