Poster Frames + Foam ... dumb idea?
I'm not a pro. I have low expectations. I know this is not a perfect solution.
My spare-room home studio has decent dimensions and no major problems apparent to my amateur ears, but maybe a little too reflective; probably due to there being nothing in there but gear. Because I am likely moving overseas in a couple of years, I do not not want to spend a lot of money or install any kind of permanent treatment.
I had an idea to buy a bunch of cheap poster frames and glue foam to them. This way I could cover a lot of surface area with just a few small nail holes, and they would be easy to move.
But before I do this I wanted to ask the experts if I'm wasting my time/money?