China Get comprehensive travel insurance.       Check the Foreign and Commonwealth Office Travel Advice before you go.       Take medical advice on inoculations.       Ensure that you have enough money for the duration of your trip.       Respect local laws and customs, in particular those pertaining to engaging in religious activities.       Keep belongings in a safe place.       Beware of petty thieves, especially on buses and trains and at major tourist attractions.       Ensure that you have a valid visa, even if you are only in transit.       Beware of the dangers of altitude sickness in Tibet.       Leave a photocopy of your passport and your itinerary with a contact in the UK.       Enter next of kin details into the back of your passport.       Do not become involved with drugs, penalties can be severe, including the death penalty.       Do not get involved with demonstrations.       Do not over stay your visa. Heavy fines are normally imposed on those who do.       Do not resist attempted robbery, this can lead to serious violence.