Maybe I'm even older school. With the wheel wax applied, I just spray my wheels with plain old water, then I use one of those big open cell sponges typically used for wall papering. Everything slides off - takes me less than a minute per wheel. And now worrisome toxins going down the drain (though the black brake dust looks scary going down the gutter ~ and there's a lot of it!)

Wheel cleaners strip whatever you have protecting them off. Simple Green is a degreaser - great if you haven't cleaned your wheels in a month of Sundays, but you'll need to put something on after that or the next washing will be even harder!

Just my two cents.