That is so funny that I ran across this post of yours.   I was trying to decorate a huge yard for Halloween and I thought "where are all the tumbleweeds?" I grew up Mira Mesa/Carmel Mtn.  and there were always tumbleweeds. Now they are gone.  I guess when the houses come the tumbleweeds tumble on down the road.   But until Halloween and this post I hadn't thought about a them in a long time.  And it was nice remembering.