Have you ever forgotten your PIN at the checkout with your shopping piled high in your trolley?
Well, this happened to me yesterday, and I wondered how the hell I could brand the number into my tiny brain.
I figured it out: translate the number into a year and remember an event from that year.
Using Random.org I picked a 4 digit number between 1000 and 9999.
Then 6 becomes June, and the year becomes 1755.
Photograph of Nathan Hale at NYC City Hall Park by Americas Roof
A swift visit to The Year 1755 over at Wikipedia, and the only June event I can find is the birth of Nathan Hale, not so famous American Revolutionary War captain.
So to remember my number, Nathan Hale is born in June, 1755.
Does this work for you?!