Also popular at our house is my regular morning alarm. You read that right: My family actually wants to hear my alarm go off. I use that drippingly gorgeous theme from Elwynn Forest, and it eases us into consciousness with the gentle caress of dawn. Sometimes my husband whispers in the dark, "Just let it play."
My other favorite notification sounds include The Lament of the Highborne as my alarm notification for after-school pickups (I need something gentle to nudge me from my writing and editing fugue at that point in the day) and the friendly, energetic classic Alliance tavern theme as my normal ringtone. (What, you thought I could handle the pandaren inn version?!)
What WoW ringtones and sounds do you enjoy on your own mobile devices?