My darling children seem to have simultaneously ruined a couple of nice items of clothing by way of spilling something on them. Going by the colour of the stains, I'm guessing its something like Ribena, or squashed up blueberries. The clothes are 100% cotton. I tried washing in biological powder, to no effect. Then I tried Ariel stain removal spray, which did fade them slightly but didn't get rid of them. Finally, I have tried soaking in a solution of Vanish liquid. The stains are still there.
Is it time to give up? One of them is particularly annoying as the stain happened on the very first wear of a brand new cardigan, so if there is any way of rescuing it, I'd be keen to try.