Sprayed Vinegar on Weeds yesterday it worked...

Yesterday we mixed up a mix of vinegar and Blue Dawn...  sprayed weeds between cracks of side walk.  It really did work.

Today A Garden for the  House sprayed his yesterday and I found out you can leave out the blue dawn.  Someone told me Dawn made it stick on the weeds.  But if you go to his site and look at his picture you can see that plain vinegar worked great.