After many years and many planners, I've finally found a process that works for me. However, I've been playing around with different organizers: Moleskine and an A5 Traveler's Notebook (TN) from LeatherPlannersPlus on Etsy. During the school year, I used a large squared Moleskine journal that I customized. I find that academic planners just don't have what I need to keep track of everything for teaching.
The first thing I do when I get a new planner is customize it! For example, I glue in end papers and an additional bookmark.
Next, I set up my monthly calendars. I've seen them drawn as a regular calendar, but I find that this works better for me:
Then, I set up my weekly pages. It took me a little bit of experimenting to find what works for me.
I'm still in the process of setting up my TN, so when I get it how I want it, I'll post pictures.
What do you use to keep yourself organized?