2

The final fact in my Harry Potter countdown ever.

Rowling has made a statement that after the books ended and before the time period of the epilogue, Hermione was the only member of the trio who returned to Hogwarts to complete her 7th year, she then ended up working for the ministry as a higher up in the Department of Magical Law Enforcement.  Even though Ron and Harry didn't go back for their final year, Rowling has said they both became very skilled Auror's and Harry became the department head. yayyyy loose ends!

FIVE

no more joshing around, this is almost real.
The Secret Code Arthur Weasley dials into the phone booth vistor's entrance to the minestry is 62442 which, if you type into a phone while it is on that T9-word setting, can spell MAGIC.
That Rowling thinks of everything, doesn't she?
Mind blowingly everything