The Big Ben is very very Big!!

This is a cute sentence from one of my students. Advice about London:
1. Don't forget to take a map, but if you do, get a free one or don't pay anymore than a quid.
2. Don't pay for accomodation- camp out on a friend's floor
3. Don't try to avoid bumping into people but do avoid pushing any old ladies over in your hurry to catch your train
4. Leave plenty of time to travel from one end of London to the other as it is always rush hour and the underground line you need to take is bound to have a fire alert.
5. If you arrive in the late afternoon, do buy a travel card from the dodgy man at the bus station as long as your conciousness can live with the fact that you are proably funding his drug habit.