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Re:Calculate the day of the week for any date in your head by BrandoElFollito on Wednesday January 01, 2020 @04:08AM (#21927324)
So do I.

Except my wife number, which I should learn. But I know how to say if a month is 30 or 31 days by counting my knuckles.

These are the kind of "hardly important but easy to remember tricks" I like

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