1. They're always caught up on your life. From good grades to your last breakup. And they're always there for you in your time of need.

2. You create tons of insiders.

3. The exchange of hilarious memes, gifs, and videos.

4. Even when no one's been hitting you up all day, at least you can count on one person to text you every 5 minutes.

--not to mention they're one of your favorite people anyways.

5. You get to know those little things about them that you can only learn from tons of time spent together.

6. You get to know their schedule. It becomes easier because you know when they're free.

7. You become a "unit." When you say: "I'm going shopping" the "I'm" really means "my best friend and I."

8. You always have someone to gossip to. I mean if you can't gossip to your bff who can you gossip to?

9. Because there's nothing like talking to someone who cares genuinely about you, makes you laugh, and is there for you no matter what.