So, I put all of the dark washing in one load, all of the whites together, all of the light coloured clothes in another wash, what should I do with that annoying navy and white striped item? If I put it in with the dark washing the white stripes go grey but if I put in with the whites I worry the rest of the white washing goes grey. School PE tops are the worst for this being a mixture of white and navy so they always end up grey. What do you do?