Just noticed that one of my favourite dresses has oil stains on it, even after going through the wash. They're not overly noticeable, but I know they're there, which is enough to annoy me.
I've read online about putting washing up liquid on the stains, or talcum powder, but does anyone have a tried and tested method? They're not fresh stains, so can't do anything asap after staining.
Thanks in advance 