This is where most people needed improvement. Women will usually stay with a style too long. The most important aspect of makeup is you need to keep it natural and stick to the earth tones. It is important to find out what colors work with your skin tone. When meeting people you do not want them seeing your eye makeup, you want them to notice your eyes.
Most offices have florescent lighting which is highly unflattering.
You have to keep your makeup light and natural. Especially your foundation. If you are going out from work to meet clients you can just darken your daytime makeup. The next thing is to have a good palette of neutral colors, so if you are going from work to dinner you can do a quick touch-up. This helps it be quick and easy.