News from Greenmaker Building Supply: Since May 21, Greenmaker has been a hot spot offering rain barrels to Chicago residents. To get a rain barrel simply stop by Greenmaker with a $40 check made out to the City of Chicago; the check MUST have a Chicago address. For all you suburbanites we have bad news: This offer is good for Chicago residents. Read all about using rain barrels here in the online Rain Barrel Guide. We'd love for you to share your rain barrel experiences here...How many AT readers use a rain barrel??