I love my NeatSheet ground cloth, which is very Tyvek like, but not the building-wrap Tyvek but rather, the clothing Tyvek (soft and non-staticy).

It's probably not waterPROOF but it's sufficiently water resistant for my needs, and is much nicer to be on than slick plastic sheeting. It's also not slippery and is silent.

Cheers,
_________________________
--Rick