I've journaled and then sent those journals to T. Well, at first I was printing them and bringing them in, so he could see how I was processing between sessions. He encouraged that, and later emailing, and said it was really helpful to him. They were never discussed outside of sessions at all.
When we were doing Skype (voice only) sessions once a week, we'd use that time to go over the journals together. When we started meeting in person instead of those Skype sessions, we would often still discuss them, at least to the point where I felt he understood what I said. Sometimes he would not bring one up, but it seems like he always printed them out (except when they got lost in SPAM-land) and actually underlined and took notes on them.
I offered that he didn't have to read at the beginning of every single journal and also offered constantly to stop sending them, but he always said they were so helpful. Sometimes when he would try to bring them up to go over, I would freak out, but slowly I was able to deal with discussing what was in them whenever he brought it up. Then, the journals (which were written kind of in letter format) became less and less frequent, and finally, I've only written one in several months, to delicately communicate a fear I was having about what seemed like his ambivalence about billing.
My T always encouraged me about my writing, saying it was "so great," and "wonderful," and "deep." It helped me be less afraid about being misunderstood or (as happened a lot growing up) being told I said things I never did or hadn't said things I was sure I did. It was important to my growth at the time to be able to share in that format, and then explore it together verbally after I had processed everything (I process best in writing). However, I consider it a huge blessing to now just be able to talk to my T and share what is going on with me, even if it takes a little more time and effort to do things that way. The growth seems to be much quicker through that direct relating than it ever did through writing to him.
This is one of a number of things I feel really sensitive about my T providing, because although the way we work has helped me so much, it feels like he does and cares too much, and even if it helps me, I'm in trouble for "making" him stretch for me in that way. I frequently have fantasies about quitting to save him from me.
I have actually begged him NOT to accommodate me or offer anything extra, because I feel so rotten a bout it.