Has anyone tried putting those foam egg carton things that come with most computers (about 1 foot to each side) on thier wall to soundproof their room? I tried this as well as palets of eggs (24 eggs)...
I like the foam much better as it was able to dampen the noise quite effectively from bouncing around. You don't need to cover the entire wall either - you can get away with just putting up about 12 of them or go for the checkered look...
Ideas? Suggestions??