If you're looking for ways to use less water, Instructables user tamberg developed a DIY water faucet sensor that shows you when you've used up a liter. Using an Arduino, flow sensor, and colored LEDs ...

The shower is one of the top thinking places for many of us, but can get a bit out of hand with water wastage and utility bills if you go down a deep rabbit hole. To be more mindful of his water usage ...