Have you ever needed to sign up for a site, just to do one simple thing, never to return to it again? This is something that we run into all the time. While I do have an email account for just such things, there are other options out there as well. Not Sharing My Info is one such option.
This site gives you an obscure email address that can be given to any site. It then forwards all email sent to that address to your regular mail account. Whenever you’re done with it, you can tell them to stop forward the mail to you, and you’ll never see another piece of junk mail again. There is also no limit to the amount of addresses you can acquire through the service.