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a.) Moisturize. We know, we know, it's a little girlie, but applying lotion can help prevent cracked and painful skin. Truman's Gentlemen's Groomers, a New York City spa, recommends daily application. If you insist on keeping some at work, keep it in a drawer and apply discreetly.

b.) Smooth the edges. Nail files are just as important as they are embarrassing, but having your nails fully rounded will keep you from picking at them. Don't try to use the little file on your clippers -- get a real one. (See "How Your Fingernails Should Look: The Gear" for more information.)

c.) Don't cut your cuticle, that thin layer of skin that grows over the base of each nail. It's not sanitary, and it's not safe. Push it back after you shower, when your skin is softest.

d.) Leave a little bit of white at the tips of your nails. Cutting too close to the nail bed can cause infections and frustration when you find a spare penny. According to the guys at Truman's, it's time to trim when you touch the end of your finger and can feel your nail.

e.) No buffing, not ever. A slight natural shine looks presentable, but more than that and you'll have a hard time convincing someone that you're not wearing polish.

To learn more about the tools you'll need to have great hands, please read How Your Fingernails Should Look: The Gear.

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