This is the smart printing system Google Calendar is missing

Even if you use a calendar app to organize your life, the paper calendar is far from being obsolete.

Write something down on a printed calendar, and it becomes a persistent reminder of important events. You don’t have to dig through any screens to write things down, and you don’t have to perform any complex sharing maneuvers to set up a communal calendar for family members or colleagues.

But even the paper calendar could benefit from some digital enhancements. With a few minutes of setup...