A couple of people have asked me how you go about making your own rain barrel. As you might expect, the web is full of information. I dug around for a few sites to recommend.
The Chesapeake Bay Trust has one of the best brochures-- step-by-step including a supply list and cost estimates, though the listed prices seem high compared to some other sites.
Over at YouTube, two videos put pictures to the words, a white-collar version by HGTV and a blue-collar version by rstidyman.