Dad, recently divorced, with 50% custody of teenage daughter.
My daughter's underwear is significantly stained due to her periods.
It never seemed to bother my ex-wife when we all lived in the same home, and I didn't feel in a position to raise it. (And yes, I pulled more than my weight with domestic chores.) Now I'm responsible for these things in my own house, I feel obliged to address at least the laundry, even if personal hygiene is a suicidal minefield.
So how the hell do you get serious menstrual stains out of underwear?