1. Bright red lipstick is just not appropriate unless you're over 40.
2. Put on eyeliner first, then drink coffee.
3. Don't skip the makeup thinking, "It's only Walmart." You WILL run into someone you know.
4. If it's after church on Sunday, be especially mindful of #3.
5. If you go to "Glamor Shots" or a similar photography place on the day of your Senior Prom, thinking you can get your hair & makeup professionally done, be aware that they don't style the back of your head.