I happened to StumbleUpon a very useful site known as Guerrilla Mail. This allows you to create temporary email addresses, you can send and receive mails using these addresses. But these addresses will expire after 15 minutes time. And you can request for another 15 minutes if you want to use those addresses for some more period.
This will be of great help, when you want to try out trial products and most of the products will require email confirmation and you do not want to disclose you official or personal email then Guerrilla Mail is the ideal one to use.