4. Clean Your Makeup Brushes

Here's a horrifying fact: The residue left on your make-up brushes won't just tint your face the next time you use them, it can actually contaminate your pores. It's true, uncleaned brushes are known to collect dust, dirt, and bacteria—all of which can wreak havoc on your skin.

Fortunately, there are plenty of cleaners around to help you get the job done. You can also just wash them, squeeze out the water, and lay them flat to dry. If boredom isn't enough to motivate you here, the idea of preventing future break-outs just might.