Dye stains that result from washing dyed clothes with other colors (usually whites) can be challenging because dye is precisely how we get color into fabric in the first place. To remove them, soak the affected clothing in the washing machine in cool water mixed according to package directions with oxygenized non-chlorine bleach (e.g., OxiClean) for eight hours. Repeat as many times as needed, then when the stain is gone, wash and dry as usual.