Tired-looking sneakers are a weak link in any look. There's nothing more deflating than thinking you've got your 'fit nailed, only to look down and see the evidence of last weekend's burrito on your toes. But don't be so quick to send them on their way to the big sneaker stash in the sky. Follow our step-by-step guide to giving your kicks a clean-up and have them back to boxfresh in no time.