Fill a microwaveable bowl with 1-2 cups of water and add a dash of vinegar (about a tablespoon or two). Put the bowl in the microwave, shut the door, and turn it on for 5 minutes. Then take a cloth and wipe down the inside of the microwave; the dirt and food will come right off!
I started doing this and will never stop! My tub & shower are always spotless-so simple. Simple shower and tub cleaner: fill wand half and half. Wet surface and scrub. wow! leave in shower & wash while you are already in there