You can use @googlemail.com and @gmail.com for signing up twice in any website

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gmail

#1

Both [email protected] and [email protected] works. Whichever you use, you will get all your emails to your Gmail inbox. This way, you can sign up twice for any website without creating another email account.

And, if you want to sign up more than twice, you can use [email protected]. You can add whatever you want after the + and you will get your emails in your [email protected] inbox.

This is very useful especially when you want to sign up for a website more than once without setting up multiple email accounts.


#2

[email protected] or [email protected] works too. But most services ignore the periods and validate the email to its original form. But worth trying. I once used this to keep those pesky newsletters off.