I missed this in my Home Economics class.
I had imagined that because DH has an office job, sort of, there would be no issues about laundry. But it turns out that he must spend his working day tossing cabers or dragging massive boulders, or other equally strenuous tasks, as his shirts have such grotty underarms that Geoff Capes would reel at the sight.
I've tried pre-washing treatment such as Vanish soap, glycerine soap, using bio powder, using hotter washes, putting extra Vanish treatments in with the wash, all to no avail. I'm starting to lose the will to live - ironing in itself is not fun and no amount of scented water is going to make much difference.
I'm guessing the underarm stains are a combination of anti-perspirant and sweat rather than just one or t'other, but am getting to me wits' end with it. I wish I could just continually buy new ones instead.
Any suggestions gratefully received. (Even if it's "just buy more shirts" - I'll be suspicious if your nickname is Matalan )