Sneakers are warm, closed and often damp from sweat, which is the perfect setting for bacteria that cause that familiar, unwelcome smell. Before you reach for a pricey spray, there is a cheaper fix sitting in your kitchen: baking soda. It is a simple, low-cost way to freshen shoes, and it takes only a few minutes of effort. Here is what it does, how to use it and how often to repeat it.
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