In my search for a viable distro to use as my main OS that's either vanilla Debian or Debian-based (and not Ubuntu-based), I stumbled on Knoppix. I know that I've heard of this distro before but never really checked it out for reasons unknown. But this distro usually gets mentioned in online forums where the question is about PC troubleshooting. Most suggest the use of Knoppix for times when the main OS doesn't boot or is infested with viruses, etc.
I decided to give it a go. Besides, it's always useful to have a bootable Linux distro in case my main OS does decide to falter.