I found today an excellent mini-linux distro (a bootable OS on one floppy disk: check my journal to have more details) called Tomsrtbt.
Even if the name can seem strange and complicated, this OS is very good as an emergency rescue disk or as a little personal Linux you can use on an unfamiliar pc. I found only 2 old posts about and I think it would have to be more known.

Its web page is here

Personally, I will put it in my wallet.