Oh yes, of course I already had a low-flow showerhead. But this one is even lower-flowing in terms of GPM (gallons per minute). And this one comes complete with a shut-off switch on it--so my water will stay the same temp while I'm shampooing and lathering up with the flow turned off. Flip the switch back on to rinse off.
I ordered it online and it came in 2 days. It was inexpensive too, imho. Brand name is "Whedon."
Ace Hardware Outlet here.