One year, I was feeling super ambitious and I decided to design my own custom planner. I think I was inspired by these planners by Geninne.
I really thought if I made a pretty book for my daily stuff, it could double as an art journal. But I never really made it that far. I just used pencil to scrawl my notes so that I could erase stuff as needed and make changes in my plans in case of snow days, etc. Occasionally I would draw a little sketch, but my lesson plan books are nothing like hers.
Her art journals are seriously beautiful!!
Anyway, if you are interested in putting together a custom planner like this, I did write a post with the DIY.