Try to use your fingers rather than your nails in those small jobs you do around the house to ensure no chipping of polish or breakage of the nails. If you have to pry something, be sure to use a tool, not your nails. When doing housework, don rubber gloves to protect your nails. Try not to soak your nails, as in a long bath or even a long shower as the water will shorten the life of your polish. Also, remember to keep your hands, including cuticles moisturized.
If you tend to have dry hands, you may want to slather on extra moisturizer, put sandwich bags on your hands, then soft cotton gloves and leave on overnight. Your hands will be super soft by morning! (Or maybe by the time that movie you're watching is over)! And don't forget to apply your top coat frequently. It's best to maintain your manicure for a week if possible as frequent use of nail polish remover is drying to your nails. If you keep these tips in mind, you'll have beautiful nails and have the satisfaction of knowing you not only saved money, but that you did it yourself!