swa66 - 8:54 pm on Sep 25, 2012 (gmt 0)
AppleID: unless you know why, and fully understand the consequences: do not create more than one. You cannot merge them.
I've a number I use and they all have a very good reason - but it's a hassle to have more than one.
Also protect them well: find my iPhone/iPad/mac is extremely powerful.