Okay, so I have just moved into my own guest house and I was hoping I could do a bit of soundproofing so I can play guitar loudly at any time of the day or night. Since I do not own the place, I want to do something as non-destructively as possible. I have read tons of articles on soundproofing, and there is just no way for me to build a room within a room etc... My guest house is relatively isolated from the neighbors, but when I blast my music, the sound still carries out of windows. I know I can't "soundproof" my room, but I still want to see if I can make a noticeable difference with the following idea: I will buy boards of sound choice soundproofing (made from fiberglass?) from home depot. I will sandwhich the boards together using green glue. I will then possibly attach egg cartons to one side of the board. Then I would cover the boards with construction paper because the fibers from the boards "sheds" and I don't want to get lesions on my lungs!! I would then prop these boards against the wall, using my gear/computer desk/chairs to keep them upright. I have one window, and I will put plexiglass on the outside of the window frame, and when I record, I can put up a sheet of the sandwhiched layer of soundproofing boards/green glue to fit over the window. I will not be able to cover every square inch of wall because of outlets, jacks, heater etc... but I should be able to cover about 75% of the room. I don't believe I need to worry about sound coming from the roof because there is a crawl space above me which I believe "captures" most of the sound travelling up. I would also put my amp (which is the primary reason for soundproofing) on one of those auralex gramma risers which should kill a lot of sympathetic bass vibrations. So, is this scheme completely a waste of time and money, or do any of you experts think I might be able to knock off a bunch of db's??? Thanks!!!