How to Find Your Apple ID, Even When All Seems Lost
by Sachin Bahal from Lifehacker on (#6FZEZ)
An Apple ID is the social security card of the Apple ecosystem: It is your Apple identity, required whenever logging into a new device or to verify you are who you say you are. So if you don't know your Apple ID, it's kind of a big deal. Luckily, there are a few ways to find it, although some are easier than others.