(a) Any tips on removing whiteboard pen from white polo shirts - but bear in mind part (b) below. Seems to be the stain of choice at the moment alongside the usual mud, blood, grass stains, food, ...
(b) I have always used non-bio as tendency to itchy skin (have mild eczema and psoriasis plus non-specific dermatitis tendencies). DS has worse skin itching (but without psoriasis so far). But am fed up with nothing ever being very white, particularly collars on DH's work shirts, DD's school socks. I could of course put my and DS's stuff in non-bio and everyone else's in a different wash which would solve half the problem but don't actually have enough white/light stuff usually for this to be efficient as most of our stuff is dark. Would occasional wash in bio liquid help, and if I followed up straight away with wash in non-bio would this be sufficient to prevent skin issues from bio? Or is the whole "bio causes itching" no longer true if now formulated much better than used to be? Or any other tips, preferably ones that don't involve too much extra effort (or the cost of buying whole set of new clothes every few months!)?