"I've got to get out more, I think," Mrs McPherson (64) mused yesterday, as she looked through a pile of 54 calendars she has been collecting, and recycling, since about 1993.
If you kept enough enough calendars, the same dates eventually turned up again, the caregiver said.
However, leap years needed to be watched for, she said.
She began her collection because she did not like throwing away, or cutting up, calendars at the end of the year.
There were "so many beautiful" calendars around, and she found it hard to discard them.
This year, she has a kitten calendar and a Victoriana calendar from 2003 to keep her "up to date".
Next year is looking to be a vintage year, with eight calendars from 1994 and 2005 already lined up.
Mrs McPherson picked up her calendars usually at garage sales or the recycling centre.
One particular bargain was a steal at just 50c and it was still wrapped in cellophane.
Her favourite calendar of the moment was a colourful Charles Wysocki Americana calendar which will "come around one day", she said.
She usually has a calendar in her bedroom, bathroom, toilet, lounge and kitchen, and she used a daily planner, rather than a calendar, to mark appointments so as not to "ruin it for the next year", she said.
A lot of the calendars did not have the year marked on them, but she did have the odd visitor spying an old calendar and saying, "Do you realise . "
Mrs McPherson's interest in recycling does not just extend to calendars.
She does not put a rubbish bag out on the street, preferring instead to recycle and compost, and to use the recycling centre.
She also had a dog who was very good at "eating anything", except radishes.
