yesterday i received an email which said "tutorials, how natural color really stays on fabric, please". i'm pretty sure i've covered that topic (the 'why' as well as the 'how') comprehensively in 'Eco Colour', 'Second Skin' and 'The Bundle Book'
but i was still thinking about it in the shower this morning and then fell into a puddle of verbage. so, from the bear who (almost) never writes rhyming poetry, here is a tutorial. in verse. in my somewhat dodgy handwriting.