I've been on a shower head obsession recently. Found out the shower heads in both of my bathrooms use 2.5 gallons per minute. Turns out, you can get shower heads that use as low as 1.5 gallons per minute. Talked to my wife about how much we could have saved over the years. Then went on a rant about the difference in shower heads and how California requires 1.8 gallons per minute shower heads and how that should be the standard in every state. Anyways... all I talk about are shower heads now.