I have struggled looking after my feet for a couple of years, tried everything from Scholl Hard Skin & Callus to angle grinders! Walk regularly on Dartmoor so feet get wet during the winter months, doesn't matter what I do with boots.
Found this small business that makes skin care product using beeswax called Hive Originals Skincare that does a range of foot care creams that works a treat:
http://hiveoriginals.co.uk/product-category/foot-creams/
Been using it for around 6 months and can't believe the difference it makes. A friend that walks with me regularly said that he had seen a blog article about using honey based products for your feet, so just thought I share with everyone.