Mrs. Meyer's Surface Scrub
"We have a white ceramic sink in our kitchen which had gotten yellowish brown in all the scratched-up places. Apparently washing dishes is tough on a sink. Anyway, it looked embarrassingly gross, but scrub as I might, nothing was able to make it look clean again. Until this stuff! One scrub-down with this powder and I have a new white sink! I am beyond grateful!!!" — Heather S.