In an interesting co-marketing deal, TurboTax is also shipping on Zip disk. The idea is that you run the software off the Zip disk and also save your tax files to it. That makes it portable and, as far as you trust the Zip disk, safe. It also solves an interesting problem I’ve run into, which is that even though I may save the actual tax files, I also have to either save my installation of TurboTax from that year or re-install it if I need to look at the file. With the Zip disk method, I have an archive of both the file and the program. Of course I need to keep a Zip drive around. I don’t actually worry too much about saving TurboTax versions, though. I just keep paper copies of my tax return and relevant paperwork which should be enough since that’s all I used to have in the dark ages.