Train cars are big, heavy, and hard to move around. They are notoriously hard to move to new places off of their tracks, and because of their strange shape, most people wouldn't think to use them for anything else anyway. But some creative people are turning old train cars into homes, offices, and even hotels in the spirit of recycling, green building, and shipping container homes. With the mortgage business in trouble and more people moving toward green housing, it makes sense to use train cars as homes. Like shipping containers, it's not too hard to convert your own car, as long as you have the means to get it to its new location. Cabooses seem to be the most popular choice for living in a train car, but many dining cars and sleeping cars are also being turned into homes. If you can pay between $8,000 and $45,000 for an old car, a few thousand more to move it and put it on your property, and whatever it takes in materials and labor to turn it into a home, you can have on...