Can I Change My Twitter Username?
If you need to change your Twitter username, you can do so by visiting your Twitter account Settings page and entering a new username in the Username box. Keep in mind, a Twitter username can only be 15 characters in length and cannot contain spaces.
1. Login to new account at Twitter.com/cavsi and change the username to /cavsi1
Then log out
2. Go to the old established account (the one with all your followers) and change /mycta to /cavsi
Log out and go back
3. Go to the account that you renamed /cavsi1 and change that username to /mycta so that no one else can grab it and so that summarize links won’t be dead.
4. Leave a note there about your correct username in case new people come there looking for you from an old NON-TWITTER link.