I ALWAYS practice the essence of ettiqute. If I'm in a large group, I follow the "rules" exactly. If I'm in a small session with close friends, we might take more hits per turn, but we still keep even, which follows the spirit of weed ettiquete.

On other shit I just try and be as curteous as possible. If I took a lighter I wasn't supposed to when I was high I try to return it. I match bowls/joints/blunts/whatever. I don't fish lip bla bla bla.