Pump it up
Waiting for hot water to pour out of the spigot is a wasteful moment that presents an opportunity for improvement. By installing a recirculating water pump under your sink, you can get hot water instantly, so you don’t have to let excess water flow from the tap. This investment costs several hundred dollars, but given the 3-5 gallons used on average while people wait, it will pay for itself in no time. Today, challenge yourself to research recirculators with an eye to saving this precious resource.