BINDER CLIP CALENDAR
Making just another poster to promote 'save paper' didn't seem like a fair idea. So instead I designed a calendar, which can last forever. It uses only 2 sheets of paper and seven binder clips with the initials of the days of the week marked on them.
One sheet has 30 days on one side and 31 on the other, while the other sheet is exclusively for February, since it has only 28 days in a month and 29 for every leap year.
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