Packing Things

Cloth
Situated high above sea level, Tibet has fairly cold weather even in the summer. It is much colder at night than the daytime. In some areas, it even snows all through the year. Take warm clothes with you, such as sweaters and down garments, and if possible extra clothes. You may need them one day. Do not forget a pair of durable and comfortable shoes. Roads in Tibet may be much worse than you have imagined. Shoes must be water proof because it rains frequently. If you can bring a raincoat with you, it is better.

Bags
A large backpack and a smaller one. The smaller one can be used for daily activities and can also be put into the big one when necessary.

Skin care products
On the plateau, the wind is very strong, so is the solar radiation. It is very useful to take skin care products, such as lip balms, sun block, and skin creams. Sunglasses and hats can also protect you effectively from being exposed to the scorching sunlight. Please pay much attention to this advice. Many people just neglect it and are seriously burnt on the trip.

Food and Medicine
When traveling to remote areas of Tibet it is a good idea to pack some food, snacks, and drinking water. It is not always easy to find food or drinkable water in these areas. It is a good idea to take a good quality multivitamin to supplement your diet since a supply of vegetables and fruits may not be readily available. Almost every tourist will have mountain sickness on the plateau. Medicine to prevent and cure mountain sickness is indispensable. This kind of medicine in Tibet is very effective; you can also buy some after your arrival. Besides, it would be wise to bring medicine for cold, head ache, stomach ache, and insect bite and so on.

Outdoor equipments
It is better to take sleep bag or other trekking equipments when you trave to remote area in Tibet, such as E.B.C, Nagri. Some of them are available in Lhasa, but it is better to be prepared before departing since supplies are unpredictable. 

Cash
In Tibet, credit cards can only be used in big cities. Remember to bring some cash in different denominations.