Luggage

I stuff my backpack with ......

guidebook: Lonely Planet, Letīs go, Footprint-Handbook
traveller cheques/ credit card/ dollars
pocket-safe, ... 
photocopies of all documents (passport, flight-ticket, ....)
dictionary
list with addresses, pen

small backpack
youth hostel sleeping bag
or: sleeping bag and thermomat
umbrella: raining season ?

camera, films, film-safe, battery
alarm clock

mosquito-repellent 
mosquito coils
mosquito net
medicine/ thermometer (malaria-, typhus-, hepatitis-prophylaxis ?)
first-aid-supplies, plasters, disinfectent
sunscreen/sunglasses

torch
pocket-knife, scissors
padlock: for backpack and doors
lighter
compass
string, nails
clothes-pegs
detergent
sewing kit
toilet paper, tissues

hot stuff or cup
spoon, fork
vitamines
Nutella

diving glasses/ diving certificate