Companies build stores with them. The USN uses them (modified with lights, ventilation) to house crew on ships. You can buy them outfitted as bunkhouses and as offices. Architects study how to use them for housing, which is increasingly common. Washington schools use them to house disaster supplies. I could go on about how they're becoming ubiquitious.
They're popping up all over the county, as we heard at the last Oak Lodge CPO meeting. And, the county has no ordinance or regulation about where they can be used in residential neighborhoods.
They're intermodal shipping containers, a system fifty years old, and we're going to see a lot more of them around home.
E-Mail me your pictures of shipping containers you find in the county, along with the time and location you took the picture. I'll make them a Flikr stream, put them all on a Google map, and once assembled, suggest the county consider looking at the issue of where they can be placed and how they can be used.