1)To remove stains from your nails, mix one tablespoon of lemon juice in a cup of water and soak your nails in this liquid for a minute. then, wash off with warm water and apply a hand moisturizer.
2)It is not good idea to remove cuticles from your nails, as it can cause infection. rather, you should use good quality cuticle oil and gently push back the cuticles with the help of orangewood stick.
3)In case you wear polish, make sure leave them without polish for a few days, otherwise they develop an ugly, yellow tint.
4)If you want to give natural shine to your nails, rub petroleum jelly on your nails and buff them with the help of a soft cloth.
5)the best time to file your nails is when you are already wearing a nail polish. this will prevent breaking or splitting of your nails.
6)if you have brittle nails, wear a nail polish or at least colorless base coat, as much as you can.

Any other suggestions would be appreciated..................