I have had a terrible time with my feet cracking, etc., and suffice it to say its pretty gross and I've tried a lot of things. I've found that the Kerasol foot cream works well, but it takes awhile of constant use to improve my feet.  

However, after 20 minutes with the foot file from Bath and Body Works, it was like 4 months of using the foot cream! It works SO well, I can't say enough good things! My feet are so smooth, and thefile doesn't hurt at all. If you need a good file, go buy this one!!!!!!