I discovered that if I add white vinegar with the detergent when I'm forced to rewash that the icky mildew smell goes away the first time and I don't have to rewash 2 - 3 times... and if I forget again the white vinegar holds off the smell for days and days. (crappypictures.com)
Not to mention those stinky mildew smells are tough to get out! (crappypictures.com)