Kitchen Sponge
The moist, micro-crevices (a phrase as nasty as what it describes) that make a sponge such an effective cleaning device also make it a cozy home for germs and more difficult to disinfect. So in the end, all you’re doing with a sponge when you wipe your counters or dishes is transferring bacteria from one item to another.
Solution: At the end of the day (and after every raw-meat encounter) sterilize your sponges by popping them in the microwave wet for one minute, as that can kill up to 99.99999 percent of bacteria.