99% iso is easy to get in the US - Frye's sells it with the computer components. Great for cleaning lenses, film, and so on.
I like white gas (Coleman fuel) for many things (stuck shutters and man, it's an excellent cleaner for bromoil brushes and glass), but man - the stuff is (by design) pretty explosive as far as fumes go. I tend to use it outdoors or at least in my large open kitchen vs. my small darkroom (where a water heater and pilot light are behind a louvered door). Maybe that's extreme paranoia, but I remember dads at the Indian Guides campouts trying to start campfires with it and suddenly their hat's in the next county and they have no more hair on their face and arms...