I came across an article that talked about how to get around using the same email for two different Twitter accounts:

http://grouptweet.com/blog/twitter-tip-create-multiple-twitter-accounts-with-the-same-email-address

 

To me, the article suggested that there would be a way to link two Twitter accounts to a single sign-on.  Really, the article was about calling out the “default address” for gmail.  For those who are not familiar with the concept, a default address is the email that catches emails for a specific domain name.  Simply put, you can send an email to “whatever_you_want@www.dansuleski.com” and I have a default address setup to catch what you decide to send to.

The unintended takeaway from the article can be useful because, with an email system like gmail, you do not have control over where undirected emails go – you do not own gmail.com.  I tested it out on my gmail and it sure did work.  Nice.

 

For more reference:

https://support.google.com/mail/answer/12096?hl=en