People never talk about this! It’s just as important as brushing your teeth - your feet can literally carry fungus and viruses! Wash, exfoliate, and apply any preventative anti-fungal product directly on the feet. I recommend Lotrimin products. They have sprays/powders you can use on your shoes as well. And then if you are into more of a homeopathic vibe I recommend dropping some oil of oregano on your feet. Get some nice flip flops for the gym. Wear clean socks. And clip your toenails.