I recently found a website that allows you to have an E-mail address for an alotted period of time. You give the site your actual Email address, and it gives you back the address for your 'disposable' e-mail. When someone e-mails somthing to your 'disposable' address, it is forwarded to your real address. This is a very good thing, in my opinion. You can use this to get websites to e-mail passwords to you without giving out your real address, thereby cutting off spam and any other form of connection with the website after you recieve it.

http://jetable.org/

Good stuff.