If you want healthier looking hair, skin and nails to be as healthy as possible, always eat healthily. Beauty will come from your nutrition first and work its way out! Your diet should consist of nutrients.
Buy duplicates of your favorite makeup items at a time if finances will allow you to do so. You should have these in handy places like a desk drawer at your office so the other can get to them easy. This is a good way to stay prepared for beauty!