Q: How do I change my Apple ID

Here is the web address to a very helpful page on apple support http://support.apple.com/kb/ht5621

first - make sure you sign out of settings - icloud before you update your apple id < a must

appleid.apple.com

login with old apple id and password

hit edit next to apple id and primary email address

enter new address and hit save

then you will get a verification email in the new email address you made your apple id

verify it and then sign into

settings:

icloud

itunes and app store

messages>send or receive

facetime

http://support.apple.com/kb/ht5621  explains in further detail

Apple ID: Changing your Apple ID

http://support.apple.com/kb/ht5621

Using your Apple ID for Apple services

http://support.apple.com/kb/HT4895

Apple ID: What to do after you change your Apple ID

http://support.apple.com/kb/HT5796?viewlocale=en_US&locale=en_US

iTunes Store: Associating a device or computer to your Apple ID

http://support.apple.com/kb/ht4627

iOS: Changing the signed-in iTunes Store Apple ID Account

http://support.apple.com/kb/ht1311

 Cheers, Tom