I appreciate your answer, therealiley.
Regarding multiple email addresses, here's my situation. I have one Apple device, the iPad and two PC's, a desktop and a laptop. I have a number of email addresses associated with my Cox cable account plus a gmail account which I use with the laptop when out of town. I received my iPad as a gift, and my daughter got me started. I didn't use it much for a while, and then discovered it's true utility when on a long RVing trip. I seem to have three addresses associated with my iTunes/iPad account, one which is my Apple ID. a second used by Apple when I reset my password, and the gmail account used to send me an involce for my Purchase at Macmall. Fortunately, I have not used Apple Mail.
I'm in my mid-80's, and poorer memory has made things worse. I should eliminate at least one email address, but don't know how. The latest home page with the missing left pane means my reference books (iPad 2 for Dummies and iPad 2, the Missing Manual) are not up to date. I'm a PC user, and thought one of Apple's advantages was ease of use. What a mistake!
Jim