Stuff I've posted on Facebook lately

 We went to my granddaughter's basketball game last night.  She made a couple of valuable moves.  That's her on the far right.

We have a water softener, and we always flush.  But for some reason both bathroom stools had a brown ring at water level.  I had tried EVERYTHING to remove it.  I had tried every formula Google had to offer.  Nothing seemed to faze these nasty-looking rings.  In a last-ditch attempt at the search for an answer, I saw the mention of pumice.  I've never had any kind of experience with pumice, although I've read that it's good for smoothing up rough feet or something like that. 
I bought the above stuff, and it took off the stubborn stains in twenty seconds.  I tried it on a rust stain on my stainless steel kitchen sink.  It took it off.  
Now everybody knows I'm not Miss Good Housekeeping, so maybe I'm the last person on earth to hear about this product.  But if you haven't tried it, you should.