I have all my sermons stored in my head. It's an amazing space because it deletes just like your phone battery re-charges, overnight, creating more space for new sermons and sermonic thoughts, which work their way through the brain pan all the way to the "delete between 12 and 4 AM" bin. Sermons are, at least for me, way more art than science, so they're like a painting that shimmers onto the scene, strikes the Gospel chord, and then shimmers away over time.
I enjoy sermons where I'm surprised by what I said and the way I said it, right there on the spot, because they're for this specific group at this specific time with this specific text in service of Jesus, and I trust the Word to produce words and sentences and thoughts in which those folks find Jesus' challenge and comfort.
If I want to hear a sermon I have preached, the wonders of Face Time Live make that available to me. And to you.
Dave Benke