Don't use a hard skin foot file/buffer and then get straight in the shower!
Bought a soap and glory foot buffer thing to sort out my dry cracked callused feet.
Sat and filed a mountain of dry skin off my feet before having a shower. I was slipping and sliding all over the place on my newly polished feet. They do look and feelgood though. Just need to get some heavya duty moisturiser on them over the next few days to finish them off.