One of the things I was fascinated with while vacationing in Australia was the dual-flush toilets. It's a silly thing to be posting about, I know, but they were very practical. The newer ones we found in hotels and other public places had two flush settings of varying intensity - low and high. The user merely pushed the appropriate button as needed. I am surprised that I have never seen one of those anywhere in North America, as water conservation is also a hot environmental issue here at home.