Do make sure to store your makeup products in a cool, dry place and that you always put any lids back on tightly so your makeup stays fresh.Do make sure your hands are clean when handling your makeup and before dipping into your jars or bottles. Also ensure your eyeliner and lip liner is germ free by giving them a quick sharpen after every use.Do allow any moisturizers applied to your skin to sink in before applying makeup. If you don’t allow enough time between your moisturizer and application of makeup then your makeup can be absorbed with your moisturizer, which can cause it to fade quickly or give you a flawed finished result.Do replace your makeup regularly, especially if there are any changes to the color, consistency or fragrance.Do make sure your makeup has a great foundation by looking after your skin and investing your time in a regular skin care routineDon’t go overboard. Makeup should be used to bring out your best features. The worst makeup mistake is to look overdone.Don’t share makeup products with other people, especially mascara, eyeliner and lip gloss. These products can easily collect and transfer germs and bacteria if shared.Don’t go to bed with your makeup on. Not washing your makeup off means that your skin can’t repair and renew itself overnight.Don’t be afraid to try new makeup trends. While classic makeup looks, such as curved lashes, red lipstick and just flushed cheeks never go out of fashion, keeping your look modern and updated by trying the latest trends.