to kill bacteria in your kitchen sponge, soak it in water and put in the microwave for 2 minutes.
I was far too enthralled by the fact that I got a stain out of my enameled cast iron pot (that the dish washer didn't get out) by soaking a baking soda paste in it overnight then simmering it with more water. It was a terrible triumph.
haha, nice. i have yet to get the mold out of my wooden cutting board. i even bleached it so i know the spores are gone, but the stain is gone.
i put it away wet one time with something on top of it. stupid.
I don't know if you can get that out. I'm moving over to bamboo cutting boards because they're more mold resistant. You can't put them in the dishwasher and you have to mineral oil them occasionally, but they stay cleaner.