I just cleaned the kitchen sink with a cleanser we found at my grandmother's house called "Bar Keeper's Friend." Based on the smell, I believe the warning not to get it in your eyes, but using it is worth the risk - this stuff kicks Soft Scrub's ass! It easily returned the sink to a shiny white. I tried it on the rust stains in my bathroom sinks as well, and it did a respectable job there too. It takes a little extra work to rinse it cleanly off, but I think I've found a new favorite cleanser.