INSTANT BATHTUB CLEANER

My fiance tasked me with cleaning the bathtub, before tomorrow night.

Well, I made the ultimate error; I accidentally scrubbed one spot a little too hard and revealed to her that the actual stock color of my bathtub is not, in fact, off-white as I'd claimed, but white.

I did some quick mental math and realized I'd just finish scrubbing up the entire tub by tomorrow night if I didn't need time to sleep and my arms wouldn't fall off in the meantime.

So I came up with a way to make it go M