I saw a link around here somewhere for a shop that sells sound dampening blankets for around $20. They were around 5x6 feet I think. I could use a couple of these. Does anyone know where I can find them online?
Or, you could use twice as many of the Harbor Freight ones for half the price.
And, yeah, people have used this method with some degree of success - just don't expect the same results as a proper vocal booth, or even close... Steve