Crazy Eights
Game for 3-4 players in which the 8's are wild. The rules here include a variation involving 2's and jacks.

Concentration (Memory)
Game for 2 or more. Simple rules for this game involves turning over cards and remembering where they are located later.

Go Fish
A game for 2-5 players in which the object of the game is to get as many pairs as you can.

Slap Jack
Rules and tips for playing this game. The object of the game is to win all 52 cards. May be played by two to eight players.