Dirty microwave? Germy sponge? Kill two of the birds with one of the stones in about five minutes. Sponges are pretty much disgusting little germ factories. Microwaves are places to warm foods until they explode and then leave the mess all over the walls of the magical heat chamber.
Put your wet sponge in the microwave on high for 2 minutes. The water will boil inside the sponge, killing 99% of the microscopic ickies. The steam from the sponge will loosen all the junk on the walls of the microwave. Let the sponge cool to a safe temperature and then use it to wipe out the gunk from the walls of the microwave.
One More Drop is a series of tiny missions to help you add more Drops of Awesome to your day.
Also, if you have a washcloth that is stinky, you can microwave it in a plastic ziploc-type bag for 30 seconds to a minute and it will take the stink out of it!