There comes a time when all your friends start turning 21. A whole new world of buying alcohol and going out to bars is now going to be taking up their weekend nights. Being underage is a bummer when you're the youngest in your friend group, so you have to keep yourself busy. Here are 21 things to do when your friends go out for the night.

1. Offer to be their DD.

2. Help them pick out their outfits and get ready for the night.

3. Take endless pictures of them to post on Instagram later.

4. Watch them pregame.

5. Wish you were 21.

6. Drive them to their first bar, while trying to accommodate music requests.

7. Tell them to stop rolling down the window to talk to people. (Then proceed to put the child lock on.)

8. Drop them off and listen to them tell you how much they love you.

9. Drive home wishing you were 21.

10. Decide you're going to have a productive night and get some homework done or clean the house.

11. Check your friends' Snapchat stories.

12. Really wish you were 21.

13. Check the calendar to see how many days you have left of being underage.

14. Start working on some homework only to realize you can't focus.

15. Turn on Netflix instead.

16. Try to find a movie that doesn't make you feel worse about being stuck home alone for the night.

17. Check your friends' Snapchat stories again.

18. Fall asleep watching the tv show you picked out on Netflix.

19. Wake up to your friends' drunk giggles and conversations when they get home for the night.

20. Tell yourself you're happy you're not going to be hungover in the morning as your force them all to drink water and eat some crackers.

21. Start counting down the days until you're 21, too.