Your October article "Is Cheap Ink a Good Deal?" on inkjet cartridges was a good one-but I can top it. In the annual maintenance of my hobby farm's pond, I add blue dye to pre-vent bottom-feeding plants from growing. (It prevents sunlight from penetrating deeply enough.) After an application of dye, I saw my fingers were stained with it-much like when refilling infejet cartridges.
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