Luggage and bags:
The sun can be intense so bring a hat, sunglasses and perhaps sunscreen.
Clothing/Shoes/Weather Gear: Wear light, airy, covering clothing to protect yourself from the sun and mosquitoes. Wear practical shoes for climbing narrow steps and walking on uneven surfaces.
Toiletries and Medical Supplies: You should have mosquito repellent for sunrise and sunset hours.
Camping/Beach/Outdoor Gear: A raincoat during the wet season, though you will probably only need it in the afternoon.
Miscellaneous: A flashlight will help you in the early morning when walking to see the sunrise. For serious temple explorers, notebook and compass can come in handy.
Luggage and bags:
Get ready for road trips! backpack is the most convenient to use.
Clothing/Shoes/Weather Gear: wear light and comfy clothes. shirt, pants, rubber shoes are okay. I don't recommend wearing shorts since a lot of the attractions are temples, it's best to give them respect.
Toiletries and Medical Supplies: alcohol, sanitizers, Kleenex, sunblock- 100% recommended!
Photo Equipment: bring extra battery if you have! make sure to charge all your gadgets, you don't like to regret missing the beautiful shots along the way!
Camping/Beach/Outdoor Gear: wear hat/cap for additional protection.
Miscellaneous: Always bring extra bottled water.
Clothing/Shoes/Weather Gear: Wear light clothing, hat, sunblock and don't forget to bring a pair of sunglasses. An extra shirt or 2 in your daypack won't hurt. You'll be sweating most of the time during the day (unless you're in an airconditioned room) but the weather improves after sundown. It is not necessary to wear rubber shoes during the dry season; sandals or slippers will do. However, you have to wear rubber soled shoes during rainy days as the temple grounds become muddy and slippery.