Playing games with your kids can be a wonderful, communicative experience, and in the case of many card games, teaches logic and reasoning skills without making it seem like hard work.
My parents taught me rummy, hearts, bid whist, and pinocle, as well as the usual assortment of kids games. My father, as he lay dying, taught me poker and blackjack. I've passed the games on to my kids, and in some small way feel like I'm passing a torch.