Is Your Makeup Bag Full of Ick and Ew?

Once upon a pre-baby time, I was working in the beauty closet at SELF magazine. Fast-forward four years, and I'm still using blush/lip gloss/nail polish that I scored from that gig. But now I realize that my hoarding could be...gross.

I'm talking about how long makeup stays good and clean over at today. And the answers might surprise you.