Where do you wash your hair?

[RancheroTheBee]

I was curious to see where everybody washes their hair. A while ago, I heard that washing your hair in the bath was a poor idea, and that "your hair will never be truly clean" (emphasis mine).

Where do you wash your hair? Does your hair feel clean? Do you want your hair to be "truly clean", or do you prefer a bit of oil in there sometimes?

If you don't mind, I'd also like to hear what the water quality is like in your area, as well as the quality of your hair and any other reasons you choose one method over the other (i.e.: I shower because: I've always preferred showers, etc.)

ETA: Oh, yes. This is a multiple-choice poll.