1.Always use a base coat before applying nail polish,let the colour leaches on to your nails. 2.Do not wear nail polish constantly,let your nails breathe. 3.Moisturise your cuticles thoroughly with a good cream . 4.To strengthen nails,rub a slice of lemon over them every night. 5.Use branded polishes from reliable brands. 6.Always use a reputed nail polish remover,preferably acetone free,as damages and dries the nail.