Gina Trapani, editor of Lifehacker, wrote about a trip she just took with some friends to Thailand. This in particular caught our eye:
At two of the three moderate to high-priced hotels I stayed at (between $26 and $80/night), the power was only on in your room when you were there. You'd have to place your room key in a slot to enable it. This is a pretty ingenious savings measure on the part of the hotel—electricity is expensive in Thailand, especially on the islands—but it means you can't leave on the A/C, or charge your gadgets while you're not in the room.
Now why haven't the hotels here thought of that? ::Lifehacker