Cleaning the toilet
If you're talking handheld scrubber brush, then yeah, that would be gross to use on other surfaces. Using a toilet brush with cleanser and giving it a good rinse by leaving it in the bowl for another flush, then a good couple of taps on the side to shake off the excess and store it in a toilet brush holder, I don't see the issue.
That's what we do....otherwise the outside of the toilet gets wiped down with toilet paper and flushed.
I've read in magazines that you can use a denture-cleaning tablet to get your toilet bowl clean without all the gross scrubbing - just set the tablet in overnight and it should be clean by morning, but you might have to run a brush along the bowl to make sure it's rinsed.
I haven't tried it yet (am waiting to use up my current cleaner), but I think that the effervescence of the tablets dissolves the ick from the bowl so you don't have to scrub.... at least, I hope that's how it works ;)