You can clean your smelly boots quickly by filling a basin with hot water and adding 1/2 cup of baking soda. Let your shoes soak for 15 minutes and then rinse them with cool water. You should also check any removable insoles in your work shoes for stinky odors. Put these insoles into a washing machine filled with cold water, detergent, and baking soda. Run an extra rinse cycle to wash away any soap residue. Give your boots time to air dry before wearing them again.