So, we moved into an apartment with an old bathroom. Everything is in great condition but I cannot get over the bathroom. It is tiny and is definitely the most aged. Even after a deep clean, it still looks filthy from the stains on the outside of the bathtub, toilet, and sink! What can I do? What cleaning supplies will aggressively eradicate these stains without hurting the finish? I'm prepared to get down on my hands and knees with a toothbrush.. I already have with a floor brush. Lol, I'm ready to lose my mind! Thanks!