Temporary disposable email address using Gmail

This is very useful for testing registration processes, where you need to register with a new email address every time.
Suppose you have a gmail address:

name@gmail.com .

You can send emails to:

name+2@gmail.com, name+cnn@gmail.com .

The rule is that you can add any alphanumeric characters after the ‘+’ sign.
All emails would be sent to your name@gmail.com account.

Is nice :-)