WhosWho:For the toilet bowl, I read this in a men's magazine (of all places): pour boiling water into the bowl. I tried it, and it did seem to work. My mom said it might crack the toilet bowl, so I didn't continue to do this regularly.
I think I'd be cautious about that, too, but you can warm up the bowl by putting in warm water to begin, then hot, then boiling.
I read that using Tide (original powder) along with boiling would often clean out a slow toilet bowl.