My T had different offices, none of them really "hers" so she used her cell phone exclusively for calling. I bet most of them turn off their cell phones late at night or it's in their purse or with their "things" on the hall table, etc.?

Echoes, I loved your "she could read her grocery list" thought; I felt the same way, like we could both just sit and read our own books or I could nap "safely" :-)