Also known as the "memory game" or "pairs," this simple card game is a great way to improve your child's memory and remind you how much yours is slipping. You can play with anywhere from two to six people or more. If you play with more than six players, you might want to add a second deck. Turn over all of the cards on the table or floor in rows of seven. Taking turns, flip over two cards at a time. If the cards are the same, then you get to keep the pair. If not, you turn them back over and the turn goes to the next player. The better your memory, the more pairs you'll score. Once the cards are all gone, the person with the most pairs -- and best memory -- wins.