11/27/10
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Ziploc bags can be used again, but many people are worried about cross-contamination if the reused bag isn't sterilized properly enough. You can wash out a bag and air-dry and then reuse it to hold non-edible items. For example, when traveling, reuse a bag to hold toiletries when going through airport security. Bring a few extra-large bags to fill with smelly sneakers, socks or a wet bathing suit.