"That" has been one of my pet peeves for a long time. It is often used unnecessarily.
Of course the your and your'e etc. is also disturbing to see misused. It's really not that difficult to speak (write) properly.

This one also floored me

youse (yz)
pron. Chiefly Northern U.S.
You. Used in addressing two or more people or referring to two or more people, one of whom is addressed.