A Short Grammar Lesson: you're / your

I can't bear it any more. I feel I must say something.

PLEASE...  PLEASE...  PLEASE... PLEASE...  PLEASE...  PLEASE... PLEASE...  PLEASE...

On your facebook status updates, twitter tweets, emails, etc:

you're = you are

example: You are a wonderful person. The apostrophe replaces the a of are.

your = possessive pronoun for you

example: Your cat is cute.

"Your a wonderful person." NO.  "You're (you are) a wonderful person." YES.

"You're cat is cute." NO.  "Your cat is cute." YES.

PLEASE include the apostrophe. 

It is located between the ; key and the return key on your (AU) keyboard.