Whats the one thing a girl should never leave at a guy's place?

As a lady, when you are in a serious relationship with someone, chances are that you'll spend some time at his place (if he's not living st his mamas) 

No matter where your man lives, as a lady, there is one thing you should never leave at his house.

NEVER..leave your body parts at your man's house (fake nails, hair, that eyelash he thought was yours)

Or you might end up like these two!!!

Are there any other things you can add to this list.????..leave your comments below!