There comes a point in your amateur/semi-professional recording/producing career when hanging blankets from the walls, filling a room with random objects or egg crates don't do the trick. You need sound treatment that actually does the job and doesn't take up too much room. The treatment will need to smooth out the horrible bass problems, imaging problems and other things that will cause you problems when mixing and recording. These problems get worse for smaller rooms. Basements have especially bad bass problems.