Re: Driver's side door RATTLE?!?! (UnderpantsGnome)
Try wrapping tape (electrical or duct) around the striker pin in the frame.
You can also try adjusting the pin in or out, up or down, to see if it eliminates the rattles. If you do this, make sure you move it in small increments, as you can make the door out of alignment with the other body panels.
Take all the interior panels off and hunt down the rattle if you think it is inside.
Lube the door striker with some white lithium grease. Stay away from WD40 as this tends to break down whatever lube is already in there, and will more than likely only be a temporary solution (at least, that's what a couple people have experienced).
Me, I've just lived with it. It's not all that bad ... but I agree, these cars should not have all these rattles and squeeks. Like someone else said, welcome to vw.