I just remembered this and had to share.
Last month when my friends and I were visiting the cloistered Dominican nuns, the prioress told us of a young woman she once talked to who was interested in joining up. The sticking point? Makeup. This girl didn't want to give up makeup.
The prioress told her she'd have to make that sacrifice for God, but the girl kept pleading for just a bit of foundation or powder or something. This was, I repeat, a group of cloistered Dominicans. Had she joined them, she would hardly have been seen at all by the outside world. She sure as heck would have given up any potential romantic interests. And yet she apparently couldn't bear to show anyone an uneven skin tone!
Just in case that shine serum post below was making you think I was vain. :)