1. "Minding the Gap" isn't just a quaint saying, it's a serious caution preventing you from falling into the never-ending chasm between the train and platform.

2. Speaking of which, the Hammersmith and City line is always late.

3. You've never been to Cockfosters, but the name always made you giggle.

4. It took you a month or so to learn that the "Way Out" signs at platforms are kind of misleading, and you can actually get off the platform much quicker (thanks, crowd control).

5. Don't go on the Central Line during rush hour.

6. Never get on or off at Oxford Circus.

7. Speed walking down Oxford Street is nearly impossible, and you'll be late, angry, and wondering why all these tourists are wandering slowly down the street with rolling backpacks.

8. Picadilly Circus is where your patience goes to die.

9. It's also the place where you will be aggressively cruised by Italian club promoters.

10. Pret is to London as Dunkin' Donuts is to Boston.

11. Pret's mozzarella and tomato croissant became your go-to hangover food on Sundays.

12. Kebabs make a great drunk food.

13. Never underestimate the size of Hyde Park.

14. The Night Bus is just a nice name for "Drunk Bus."

15. Happy hour is every hour when you see an old man drinking a pint on your way to morning class.

16. There is no such thing as a cheap meal.

17. But samples at markets are a good way to get a cheap lunch.

18. Being hangry is a real issue when wading through the massive crowds at Camden and Portobello Market (but it's so worth it).

19. You shop at Tesco when you're feeling poor, and Waitrose when you're feeling rich.

20. You shop at Primark no matter what but own such a bizarre assortment of clothing now (it's just so cheap!)

21. Your head must be on a swivel when crossing the road.

22. Always use a vice grip when going up and down the stairs on a bus.

23. Nothing quite beats the free access to hundreds of amazing museums.

24. History buff or not, Tower of London is pretty cool.

25. Reasonably priced plays and musicals? Who would have thought?

26. You can always let your Harry Potter freak flag fly.

27. The weather can change from sunny to rainy to windy back to sunny all within four hours.

28. Something nutty is always going on in Trafalgar Square.

29. Every time you travelled outside London, you were shocked by how cheap everything was.

30. Yet, you wouldn't have studied anywhere else.