How do I dampen my listening environment?

I think it was me that mentioned the mirror thing. I did a lot of research on the subject, forgot most of it. It's not seeing the light reflected, it's being able to see the tweeter's reflection in the mirror. You have someone move the mirror across the wall at the heighth of the tweeter. Once you can see the tweeters reflection in the mirror, that's where the panel goes. This works for the second reflection point as well. You can treat you ceiling with panels but it's going to have to be the ceiling or the floor. No way getting around it.The idea of heavy curtains, book shelves loaded with books, bass traps in the corners can all make a huge difference and become very expensive as well. You really need to throw an area rug and nice pad down though. I can't imagine you're ever going to be completely happy without it.