I have an unlevel toilet and I once saw a "This Old House" show
or something like that, where they inserted this angled piece of
hard material under the toilet to level it then cut it to fit
the size of the toilet. It was a very clean solution. I do not
want to level the entire floor because the house is 130 years
old and dont want to cover the beautiful wooden floor, nor do I
want the toilet on a platform, nor do I want to use those little
shims.   Tredd Barton