Phone calls and emails have always been helpful for me. So much happened between my sessions (they weren't weekly) that it helped to mention something and get her feedback. It also helped to keep connected to her between sessions and she said she was on board with the emails to stay connected as long as therapy was not being done through email. Phone calls were the most helpful when I was having a hard time and she always calmed me down and it was so soothing to hear her voice. I think if out of session contact is all the time it can hurt any "obsession one might have".