Entertainment books/cards are great!
The restaurant I work at accepts this for discounts, and gives an additional discount after the card is used for the listed one. See, the listed discount is a buy-one-get-one entree, which you can only use once. BUT, after that, my restaurant allows you an employee's discount on one meal EVERY TIME YOU VISIT after that, as long as you bring the card!
The cards here in AZ last until November, so a 2004 AND 2005 for the price of a 2005 is an amazing deal!
If you get/have the cards, I suggest asking the businesses you redeem them at if they offer an extended discount, like my restaurant does
Great post, Karen