Taking care of your fingernails is something you should practice as a young lady and guys should too. Grooming includes the care for your nails even if that means simply washing your hands often. There are many things that build up under your finger nails that you might not be aware of. Sometimes it becomes visible and appears as a black lining under the nail. Using something such as the curved end tool attached to a nail clipper is how you can clean them. Going to the nail salon is another way of taking care of your nails. The surface of your nail is also important because they can change color, shed, or even break unevenly.