>Let's say you buy some of this stuff for 5 bucks a bottle.
>
>Let's say the bottle is .5 oz.
>If you were to buy a gallon of it it you would multiply .5 x 128
>which = $64 dollars.
um, that would be 64 ounces (which is only half a gallon). If you want
dollars, you have to multiply times two (to get a full gallon), then times
the aforementioned "five bucks." IOW, nailpolish is about $640/gallon,
given your assumptions, which seem as faulty as your math.
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