10. Let your parents buy your plane ticket home. It can be trying to be stuck in a house with your family for a few days or a week, but vacations in your 20s can be hard to come by. Let them subsidize your trips home and do you as much as you can when you get there.
11. Stay up late. In your 20s, you’re all, “Let’s go to another bar!” “Who wants to eat at a diner?” “Have you guys seen the sun rise from the High Line?” “In this moment I swear we were infinite!” When you get older, this becomes, “What are you doing? Go home. Watch Parks and Rec and go to sleep. What is wrong with you, staying up all night? Who has time for that?” If you’re in your 20s, you do. You have all the time. Do it now and take advantage of how not tired you are. You think you’re crabby now when you stay up too late? You’ll never believe how terrible you feel when you do it in your 30s.