How do you keep natural nails from looking dingy and yellow?

United States
August 10, 2007 4:53pm CST
Recently, I stopped biting my fingernails and started letting them grow. And, for awhile my nails looked fantastic, but after about two months they started splitting and looking dingy. And, no matter how often I wash my hands they still look that way. Does anyone have tips for keeping natural nails looking healthy? How do you keep nails from getting a yellowish tint or looking unhealthy? Any suggestions would be appreciated.