Would you believe it! I have just dyed some cotton trousers from yellow to khaki, and they look as if they have a new lease of life..Just now, trying to put some bleach in the bleach bottle, guess what, yep I splashed them!! the very reason I dyed them in the first place! but it'll be harder to dye them now, cos they are green with white splotches on them..where as before they were pale yellow with pale splotches on and so easier to cover up!