I elevate the pot and it's saucer, onto milk crates, bricks, etc.
and use a strip of wet cloth as a wick and hang it over the side of the water filled saucer,
guiding the extra water to drip into a coffee can, or other container below it.
I pour the wicked off water through again, or toss it when needed.
When the saucer empties, I store the cloth strip in the saucer to get wet the next time it's needed.
and to keep it handy in case of immenent over flowing.