I find myself reaching inbox zero about once a week. I do not have all of my emails in OF, though I have a few waiting for-follow-up emails. There are no tasks in OF that involve responding to an email, the point being I have not simply moved my email from the email client to OF.
I credit this relatively good state of affairs to a workflow that is, well, working for me. I also bulk process emails and have a lot of rules to eliminate spam. I also unsubscribe to anything that shows up in my inbox that I have not invited there. I don’t use Sanebox or any other service and I use the free Apple Mail client. I also think that part of this is due to the fact that I don’t permit long threaded conversations by my staff—I call them or have them call me, or we meet briefly, if we are at three email exchanges.
I did not clean up my inbox for this post.