In September 2003 smile cards started appearing all over the world. Smile cards are part of a game of tag. Once you have done something nice for someone you leave a smile card for them to find with a challenge for them to do the same for someone else. They can use the same smile card and leave it for someone to find after they have done an act of kindess for them. To start sending smile cards and get ideas of things you can do to help others go to the HelpOthers.org.