Ok comrades, jfisher2008 and I are working on a set that was designed before we knew our budget (fun) and now trying retroactively to fit inside our budget. As a result I'm cutting corners all over the place, but there is one spot where I'm getting stuck- we're building flats to represent a house, and as designed, it has 6 windows. The cheapest way I found to purchase a material to substitute for glass was 1/4 inch rigid plastic sheets (4x8) from Acme Plastics, but that still runs over 125 per sheet (not including shipping here).l So the question is- how have you faked glass in the past? Are we talking plastic wrap, using the audience's "imagination" or what? Any help would be appreciated.