Using dirty makeup brushes
We know: you barely have time to get your makeup on in the morning, let alone clean your brushes—but dirty brushes are a big cause of clogged pores and breakouts. And who has time for all that?! Dirty brushes can actually harbor bacteria and even mold in between the fibers. Do you really want to put that all over your face?! Keep it clean, ladies. Rinse your brushes weekly with warm water and wash them once a month with baby shampoo.