Light clothing made from natural fibres is the best clothing for the region. You will find that all hotels, no matter how small offer a laundry service or can at least arrange someone to launder your clothes for you -in many cases, this may be out by hotel chambermaids free of charge. All towns have laundry services and will usually return your clothes to you within 24 hours. Please remember that you should normally wash your own undergarments. In the rainy season, clothes may take longer to dry.
Warm clothing - for the months of December and January, a light jacket is often necessary in the lowlands - more warm clothing may be needed if travelling in the highlands. Most towns have markets where you can buy a warm jacket for a fraction of the price you would pay at home. All Mekong countries sell sarongs of some form or another that can double as scarves, dressing gowns and towels.
People in the region dress modestly. Women visitors are not expected to wear skirts, but miniskirts and revealing shorts, may often be viewed as 'not polite'. The best plan is to dress modestly like the locals.
Footwear - bring sandals or slip ons to take off easily when entering temples. Flip flops can be bought very cheaply just about anywhere.
A small collapsible umbrella is sensible for the rainy season.
A flashlight is a good idea, in case of power cuts.
Electrical multi adaptor if you plan on bringing electrical appliances - there are many different types of plug sockets used in the region. For example, we know of hotels in the region built by Singaporean companies that use Singaporean (UK) standard plugs, rather than local standards - so be prepared!
Video tapes and camera film can be found in easily in Thailand, but may be more difficult to come across in remote parts of the other countries. Specialist products are often hard to come by. We advise you to bring plenty of film and video tape.
Toiletries can be found in all towns, but outside major cities, they are limited in supply. We suggest you bring your own. In Thailand, toiletries can be found everywhere.
Insect repellant can be found in towns, but many visitors have their own favorite brands - bring your own.
A first aid kit is a very good idea.
Mobile phones - some GSM roaming agreements exist in Cambodia, Laos and Thailand. Check with your service provider before travelling.
Modems - beware of proprietory telephone systems that look standard frying both your modems and your notebooks. Check with the hotel if their telephone system can be used for modems.