We started cloth diapering last week and so far we love it. My only question is that after washing, some of them already have *faint* staining. D is 12 weeks and EBF, so his poops are mustard/green in color. I do a cold soak, hot wash w/All Free and Clear, and cold rinse. Now that the weather is (supposedly) getting warmer finally, I'm anxious to start hanging them outside to help naturally bleach out the stains. But short of that, any other tips? Am I missing a step?