Has anyone used a Ladybug Showerhead Adapter (or ShowerStart adapter)? It is supposed to reduce the water flow to a trickle once the shower water comes up to 95 degrees so you don't waste water. This allows you to turn on the water, walk away and come back when the water is hot enough for you to start your shower.

I'm thinking about getting one of these since our shower is as far away from our water heater in our house as you can go and takes a while to heat up. I'm sure we waste a lot of hot water since I don't always just stand there waiting.