I have T's office, home and cell phone numbers and her home email address (which she can also check at work). Depending on if I want her to pick up or not is what determines which number I call (Or what the emergency is).

I don't do phones well, or much, so sometimes I will call the office phone if I know she's left for the day or I will call her cell phone when I know that she's in a session. I am getting braver though and I do call her cell phone on occasion, knowing she will pick up. My communication of choice is email or text messages to her cell phone (I text if I need immediate feedback, email if it's not urgent). She lives up the street from me, and while I've been in her house, I would never just pop in on her, though she has said in an emergency (when son rages, etc), I could do that.

She doesn't do that with all of her clients, but we are a special case because of other factors. I'm thankful she is there.