Cultural Offering notes the return to paper planners.
I've used a variety of paper planners over the years. I'm in the second year of using the Levenger Circa SmartPlanner.
I like the convenience of the Circa binding system and have a punch that enables me to add any size paper I like to my notebook.
Clients use Outlook to book meetings but my planning takes place on paper. Simple, convenient, and its batteries are unlimited.