Quote Originally Posted by KiNdBlunt
I was at the dollar store the other day and I saw those cheap white plastic tablecloths and I thought maybe I could use them to line my grow room. If they were taped against a black surface would these reflect light in a grow space? Obviously not as well as mylar but they can be cleaned and white paint was definitely not an option for me. They come in large sheets and are cheap at the dollar store and are pretty easy to work with.

My only concern would be safety. As long as this plastic was below the lights and outlets it should be OK. You may want to see how easily that cheapo plastic can spark up anyway. Any white is better than none.