We suggest you bring:
Luggage:
◊ 1 large soft-sided (if possible) bag/suitcase (expanded modular backpack or hold all/rolling bag of small to medium size), approx.80-100l.
◊ 1 daypack, approx. 10-20L: for drinking bottle of water, camera, etc
Checklist:
◊ Passport (with photocopies)
◊ Travel insurance (with photocopies)
◊ Airline tickets
◊ Cash of USD (if USD, please bring units printed after 2003, i.e., with the larger face image and clean, no markings or tears, especially for larger denomination bills). Please refer to the following website for daily exchange rates: www.xe.com  (small units like below USD50 would be exchanged at low rate usually)
There are many ATM machines that accept both Visa and Master cards, but these are limited to major cities.
◊ Credit/debit card
◊ Hand sanitizing lotion
◊ Flashlight (and spare batteries) 
◊ Money belt
◊ Moisturizer and lip balm
◊ Camera (with spare batteries)
◊ Binocular
◊ First-aid kit (should contain Aspirin, Band Aids, anti-histamine, Imodium or similar tablets for mild cases of diarrhea, rehydration powder, extra prescription drugs you may be taking)
◊ Presents from home, like photos, stickers, postcards, children’s books, souvenir pins
◊ Wide-brimmed sun hat, sun/wind glasses
◊ Proper travel shoes
◊ Trousers, shorts & underpants (app. 2-3) 
◊ Wind/waterproof jacket (Gore-Tex 1 warm, comfortable clothes for the night)   
◊ Good warm socks (app. 3)
 
Please note that the temperatures can become chilly at night. Temperature fluctuates around + 10 to + 15 degrees Celsius at night and + 20 to + 30 degrees Celsius during the daytime, depending on location.