I would like to try this tip.
Last year my dh built a cottage fence and put down some of that weed blocking fabric stuff. It was probably helpful for him while he was setting the posts and such but I told him I had read several people say the stuff doesn't work ---- And now it is confirmed! The stuff doesn't work!!! And he used the supposedly thicker, better, black fabric. That grass (you know the stuff that has runners and roots that cannot be pryed out) just poked up right through.