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What do you change every month, no matter how much it’s used?

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Regardless of how often people change the other things on this use, the only way they can get any use out of a calendar at all is by changing it every month.
Paola Aguilar/Unsplash
Paola Aguilar/Unsplash
What do you change every month, no matter how much it’s used?
- Tires
- A Calendar
- A coffee filter
- Bedsheets
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