So I'm a complete novice with homebrewing, starting my first brew tomorrow, hopefully. I was wondering for future, larger batches, what people think about making a carboy from the water jug that you'd often see on a water cooler, those large, translucent blue 5 gallon containers. Has anyone tried this, or have any reason that its not a good idea? I know that this kind of plastic is fairly O2 permeable, so it wouldn't be suitable for aging or storing, but what do people think about using them for primary and secondary fermentors? I'm a college student, so I'm looking for cheaper alternatives to a $30 or $40 glass carboy, of which you end up needing at least a couple. Any input would be appreciated. Thanks a lot!