I saw this tip on oprah.com

Had to try it.

Before bed,rub your feet with something containing Salicylic Acid. I chose stridex because they had these at the dollar store.

Let it dry.

Then slather your feet with vaseline (or a think lotion).

Cover up with cotton socks and hit the hay.

Do this every night for a week and you will have baby soft feet.

It works very well. And I don't mind sleeping in socks when the weather is below zero. This will supposedly get rid of cracked heals, but I didn't have cracked heals to start with.