Foot detox: cup epson salt, cup baking soda, cup hydrogen peroxide 10 drops of essential oil (optional) mixed in hottest water you can tolerate. After the soak rub some coconut oil /or wheat germ oil on the feet.
Listerine Foot Soak I tried this. Soaked for 15 min and quadrupled the recipe so there's enough liquid to actually soak feet. Afterwards, I used a pumice stone and the cracked dry skin came right off. I was surprised it worked so well!