According to the EPA, the two most water- wasting categories in a house are leaks and inefficient products. High efficiency toilets, dishwashers, clothes washers, aerators, and other low flow devices are effective in conserving water. Just like there are products labelled Energy Saver, there are WaterSense faucets, showerheads, toilets, etc. that have been certified as water reducers by the EPA. Look for these products when buying new and take a look at the provided links for tips on evaluating your indoor water use and improving your water conservation.