Adaptors and Electronics, Bangkok
Miscellaneous: Many hotels in Asia have hair driers, don't bring your US one. It probably will not work. Look for the 110-230 VAC or 85-260 Vac label on your devices. It has to cover the range of 110 to 220Vac to be safe in Thailand or most of the rest of the world.
Luggage and bags:
Buy in Bangkok
Clothing/Shoes/Weather Gear: Buy in Bangkok
Toiletries and Medical Supplies: Branches of the excellent British pharmacy retailer, Boots, are everywhere in Bangkok
Photo Equipment: Sure.
Miscellaneous: Most three-star hotels or less don't put a kettle in your room. If, like me, you enjoy a cup of tea first thing in the morning, bring a travel kettle with you ( I bought mine at the duty-free area of Heathrow Airpoprt, London). You can buy tea, coffee, cuppa-soup, pot noodles etc at any 7-Eleven store or go to the nearest branch of Topps Supermarket. I travel light, and I mean light, but I never go anywhere without my trusty kettle and a small extension cable.
Miscellaneous: i would advise spending money on a good adapter with both straight and round pins for your gadgets.lots of hotels have old sockets that tend to spark and sizzle at times,wouldnt advise leaving anything plugged in if you leave the room.
The adaptor used in Thailand is the same one used in Bali, two round pins.
We normally take a small Australian power board with us as well, then there are plenty of points for charging mobiles, laptops, cameras etc.