NOT USING IT TO PRIME YOUR EYELIDS (OR LIPS)
While almost everyone uses concealer under their eyes, most people don’t apply it on top of their lids–which not only helps with any discoloration there (they are called dark circles after all), but also gives your eyeshadow something to adhere to so it’s less likely to smudge. When applied on bare lips, it neutralizes any pink or red tones so that your lipstick is more true to hue.
OR NOT USING IT TO CORRECT MISTAKES
Like smudged eyeliner or feathered lipstick. Resist your first instinct–which is to grab the remover–and reach for your concealer instead. Using a pointy Q-tip or brush, simply go over the area to clean up the edges without having to start from scratch.