Originally Posted by CDSmith

One little item I've heard can solve this issue is something called an autocirc. It's basically a little pump that is installed at the furthest sink from your hot water tank. It then constantly circulates hot water from itself back to the tank, so that anytime you turn on a hot water tap in your home you instantly get hot water. And they are also compatible with tankless water heaters.

By the specs the autocirc will save thousands of gallons of water per year. I can see it, because it eliminates the need to run the water waiting for it to get hot.

There's an autocirc at Home Depot for around $240, common price is around $300 from what I've been able to tell.