Once you've finished your makeup, eliminate the excess shine that's all too common for oily skin with a finishing powder. To avoid the "ghostly" effect that even celebs like Angelina Jolie have suffered in the past, lightly dust a translucent powder like Marc Jacobs Perfection Powder Featherweight Finish, $48, or Becca Soft Light Blurring Powder, $38, on your T-zone.

You also may want to consider applying powder before your foundation if you have very textured skin. (Yes, you read that right). Reneau says she'll sometimes apply powder over trouble spots prior to foundation to create a smooth base without adding any weight.

Selfies may not have been a thing in the '60s, but Holly Golightly got it right when she said, "There are certain shades of limelight that can wreck a girl's complexion." Don't undo all of your hard work by taking your picture in poor lighting. Soft, natural light is best. To ensure you always have prime lighting at your fingertips (literally), try a Lumee Case, which provides studio-like lighting, even if you're in the back of an Uber.

The angle of your selfie is also important. Hold your phone slightly above your head and away from yourself, tilting downward. Breathe in, and on the exhale, snap your picture to avoid wobbliness. Avoid reversing the camera on your phone to take the picture because it lowers the quality and changes the angle.

If you don't like your first attempt, don't sweat it. Even expert celeb selfie-takers like Kylie Jenner take more than one picture before getting a selfie worthy of 1,000 likes.