You can re-live a previous year that may have been much better. These years had the same calendar as 2021:
2010
1999
1993
1982
1971
1965
1954
1943
1937
1926
1915
1909

So if you have any old calendars lying around, you can reuse one from one of those years for next year. Just be careful about any doctors appointments, reminders to return tapes to Blockbuster, or the note to take the DeSoto or Edsel in for an oil change than you may have scribbled in.

I will be recycling a 1999 Kliban CatCalendar.