So I realized that I skipped #7 on my tip list. Here you go:
I use my Mr. Clean Magic Eraser (or the generic equivalent, which works just as well) to help clean the bathtub. Now, I wouldn’t need to if I cleaned the tub on a regular basis, but I don’t. So I get a ring around the tub and dirt in the texture on the bottom that is nearly impossible to scrub off. But I get it wet, sprinkle Ajax on it, then use the damp Mr. Clean and scrub and it comes off so quickly! I love it!