It's easy, I'm not using stock sounds for anything. Different sounds for each of my three email addresses. Different sounds for regular text messages, and Google Voice text messages (my phone has two numbers, personal and business). Facebook, Facebook Messenger, Google+, Skype, etc all have their own sounds too. I know exactly what I get just by the sound, no need to even look at my phone.I'd like to add my own ring tones someday. I haven't gotten around to looking up how to do it. Maybe this weekend.