My bathtub could be the poster child for "ring around the bathtub". My little boys like to take a bath in my tub because it is extra deep and they love to practice their swimming moves at bath time. Then we let the water out, leaving a line of dirt and grime all the way around the tub. It builds up fast and usually requires a lot of scrubbing on my part to remove. Until I found this miracle homemade tub and shower cleaner recipe. This ...