At Katee's suggestion, I recently decided I needed to throw out my old-fashioned Revlon files and convert to the often-mentioned crystal file.
Last month I picked up a NailTek crystal file with the gorgeous pink case shown above. I believe it was $15 at Ulta and I had a coupon for $3.50 off.
Girls, this is one of the secrets to fabulous nails! Crystal file prevent peeling and splitting and are so much easier to use. If you aren't using a crystal file, I insist you convert stat!