A few years ago I stumbled on to a 'Writers Planner' on the internet. As you probably have gathered by now, I do not like spending money, especially on things that I cannot see me using. I find commercial planners fall far short of what I want a planner to do. However, after looking at the sample pages, I decided it was a good idea, and went ahead designed my own.
I hope it helps you or give you some ideas for your own planner