If I'm over at the mother-in-law's and I need to grab something off my system at home, I just fire up putty. When I was in California for a job interview and had some time to kill, I fired up putty to check my mail. Whereever I go and I don't have ssh on the system, I just use putty.
I've got it sitting on my website at http://www.mixdown.org/ssh.exe so as long as I've got a web browser and a win32 machine, I've got ssh. Nothing is better. :-)
That link is real, all it does is ask you if you want to download the file or run it. So far as I know there are no viruses or anything nasty, it's just the executable for putty. I make no guarantees though.