I usually put my machine between the passenger front seat and the passenger side back seat. I make sure the front seat is pushed back enough that the machine is not wedged but will not fall over either. Fabric/books/show and tell get tucked around it. I use one of those collapseable crates on wheels with a telescoping handle to wheel it into class. I have about used mine to pieces as I have had to zip tie the hinges. Time to look for a new one...