1. How important AIM was to your social life whenever you weren't at school.
2. How truly iconic a duo Paris Hilton and Nicole Richie were — and duos today wish they could be half as cool as them.
3. How much this was MUST SEE TV:
4. How satisfying it was to shut your flip phone when ending a call.
5. How you felt betrayed when you heard Nick Lachey and Jessica Simpson broke up.
6. How you looked forward to any Ashanti and Ja Rule duet.
7. How stressful it was to pass a note in class without getting caught, since texting wasn't really a thing.
8. How IMPORTANT and ICONIC this duet was:
9. How everyone said "there" like "thurr" because of Chingy.
10. How good it felt to scream all the words to “Hollaback Girl" during school dances.
11. How everyone rushed to the dance floor as soon as they heard "1, 2, 3/ Uh!"
12. How it was both stressful and satisfying to cruise the aisles of Blockbuster with your BFF ~looking~ for a DVD to rent.
13. How really invested you were in Ryan Gosling and Rachel McAdams' relationship.
14. How they will never be a more iconic lineup than the "Lady Marmalade" lineup.
15. How Mariah Carey's Cribs episode is one of the most important moments in pop culture history.
16. How much Avril Lavigne's "I'm with You" summed up all your teen crush anguish.
17. How important this album was for introducing you to the Beatles:
18. How excited you were any time you saw a new friend request on Myspace.
19. And how much love you felt whenever one of your friends put you in their Top 8.
20. How truly groundbreaking the Osbournes were. Celebs doing reality TV was not really a thing before them.
21. How you had a 50% chance of this happening any time you used Internet Explorer:
22. How much of a struggle it was deciding how to fill 80 minutes of music on a CD.
23. How important Britney Spears was to the VMAs.
24. How magical it was to wait in line at a bookstore to get the newest Harry Potter book at midnight.
25. How literally every body was quoting Napoleon Dynamite...
26. ...and Mean Girls after watching them.
27. How fun it was to go to Borders for a couple of hours just to read the magazines.
28. How you either hated or loved Abercrombie & Fitch (there was no in-between).
29. How you rushed home to watch TRL, and were always infuriated when they only played a few seconds of a video you liked.
30. And finally, how really decisive your preference in boy bands was:
