If you have a gmail account, you can add a + to the end of your screen name and something extra, and the e-mail will still go to your account. For example, if your e-mail address is [email protected], you could put your son's as [email protected], and it will all go to [email protected]. I do this to be able to figure out who is sending me spam e-mail. It may work for other e-mail providers, but I don't know. Hope this helps someone!