Stain removal. What about those really stubborn stains that cling on like a limpet in a rock pool? Grass, blood, motor oil, ink, or a drop of your favourite organic wine. Again, the general response is The End Justifies The Means, i.e. absurdly potent bleaches that do the job at the expense of environmental health. Yet there are plenty of safe, strong alternatives, such as concentrated orange cleaner, table salt or corn starch – all leaving the environment just as you found it. (Compare this with the headache of safely disposing of toxic household substances).