• Beauty badge

19 Double Duty Beauty Tips Every Woman Should Know

Inspired by our collaboration with Birchbox.

1. Use lip balm to tame eyebrows.

A wax-based balm will keep hairs perfectly in place all day.

2. And use eyeliner to fill in a bold brow.

Just make sure to use a lighter touch than with a regular eyebrow pencil.

3. Use mascara to double as eyeliner for a perfect match.

4. Put hairspray on an old toothbrush to tame flyaways and fight frizz.

5. Substitute brown eyeshadows for bronzers if you run out of either.

6. Dust baby powder on lashes between coats of mascara to amp up the volume.

View this video on YouTube

7. Mix eyeshadow or blush with Vaseline or clear lipgloss for the easiest DIY lip tint.

Get the full instructions here.

8. Apply Vaseline before spritzing your perfume for a longer lasting scent.

9. Smooth Aquaphor on split ends to hide them between haircuts.

10. Or use it for pretty much anything else.

11. Turn your lipstick or gloss into a cheek tint.

View this video on YouTube

Just blend from the apples of your cheeks up to the temples.

12. Substitute conditioner for shaving cream for hydrated skin and smooth legs.

So tried and so true.

13. Use eye shadow sticks as both shadow and liner.

14. Use highlighter or concealer around lips to prevent lipstick from bleeding or feathering.

15. Vaseline or rosebud salve for a dewy glow on your cheeks.

16. Mix lotion with old or cracked bronzer for a DIY self-tanner.

17. Can't make it to the salon? Cover roots with mascara or eyeshadow.

18. Keep your manicure mess-free by putting vaseline or Aquaphor on the skin around your nails.

19. Combine clear nail polish with eyeshadow for a custom nail varnish.

The Olsen twins know: double is always better.

Love these double duty beauty tips? BuzzFeed and Birchbox have teamed up to bring you this amazing Happy Holiday Hacks Box. Click here to learn more.