Installed a dual flush toilet with a simple $40 adapter kit. We depend on our well for water, and after two summers of drought, I'd like to conserve this precious resource wherever possible.
Speaking of water: We plan to set up a rain barrel system along the south side of the barn this spring to get water to the gardens--preferably drip irrigation. We moved here from the desert, and it looks like some of the best practices there might become necessary here.