Those who love in flats who do not sun-dry their clothes, particularly towels... do you notice that they turn black in patches over time? Like there's some fungus growing or something after a while? Noticed this happenning for some time now and always attributed it to the fact that I dry my clothes indoors. Is there a way to prevent this short of hanging them out the window on poles? (Don't do it because dunno what ppl upstairs throw out their windows, and we're not home most of the time). Never had this problem living in my mum's place where we would hang the clothes outside in the sun..