I already know how to make a bootable flash drive. My question kind of involves this. I would love to make a portable hard drive with the bootable version of Ubuntu on it and be able to save my files and settings to the same hard drive. So in short when I plug it into computer A and make a word document I would like to save it to the desktop and then when I plug it into computer B the file is there on the desktop, Along with my other settings.
I would like if I could do that with any computer I can boot Ubuntu on too. If anyone knows how to make this would I would be extremely happy if you could help me out with this. I am new to Linux and don't know too much so if you could explain it to me like I am 5 years old I would appreciate it.