Which is better than the all too common middle ground: writing something once and then not maintaining it. I've been burned many times reading some documentati

Which is better than the all too common middle ground: writing something once and then not maintaining it. I've been burned many times reading some documentation and thinking I understood until I discovered the code has changed since and the documentation is now wrong. I'm in favor of documentation. I write it. I get people pointing at what I've written as examples of what everybody should do. However it is a lot of work. I'm constantly looking things over to be sure it still makes sense. I often wonder if it is really worth it. I hope you follow my example and write documentation, but it better feel like a lot of work.