Hot Showers dont really kill my high... Often the only place I can smoke if my bathroom so I get the hot water going so it gets all steamy and smoke, then I take a nice hot shower while im waiting for it to really kick..and by the time I get out I look and the mirror and go "oh shit im stoned" and do a little dance.

Then go into my room eat goldfish and listen to the smashing pumpkins or the doors.