As you have gotten older, you have found a new appreciation for what it means to be a best friend. There are acquaintances, "sisters", old friends and new friends, but no one can replace your best friend. You have realized that a genuine friend isn't about who you've known the longest, it's about who has stuck by your side. Your BFF worked hard for the title and so did you. Below are just 30 of the things that make your best friend actually the best.

1. She willingly gives you her last hair-tie.

2. She gets alarmed when someone else refers to you as your "best friend."

3. She will watch you try on clothes for an hour at the mall.

4. And not get mad when you decide to buy the first shirt you tried on.

5. Your BFF lets you have dibs on the cuter friend.

6. tag you in Instagrams that remind her of you.

7. Buy your favorite alcohol when you go out together.

8. Answer your phone call/text at any given hour.

9. Pick you up in times of desperation (your code is "man down").

10. Turn one margarita at Taco Tuesday into a "Tuesday to remember."

11. Tell you when you look good in an outfit.

12. Tell you the truth when you don't look good in an outfit.

13. She helps you pick an Instagram filter (don't tell anyone).

14. She knows how to cheer you up after a bad day.

15. She doesn't understand how a boy could ever break your heart because she knows how great you are.

16. She knows your pet peeves (and vice-versa) and knows to avoid them.

17. She knows your order at all your frequented restaurants.

18. She is part of all your future travel endeavors.

19. She doesn't ask if you want a latte because she knows the answer is yes, regardless of the time or day.

20. You go on more dates together than you do with men.

21. And no, you don't think it's weird that she texts your mom.

22. She helps you fill in your eyebrows.

23. She gives you her last stick of gum.

24. She can pick a man out for you better than you can.

25. She always brings wine when you say "let's watch the Bachelor tonight?"

26. She helps you make major decisions because she understands your thought process.

27. She knows almost (if not all) of the items in your closet.

28. And you share clothes for every occasion.

29. You have planned your weddings together (or at least discussed them).

30. You would do anything for each other because you are best friends for life.