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!
How to Clean and Deodorize A Microwave | TodaysCreativeBlo...
Bath & Shower Cleaner Recipe ~ Says: I tried this and the soap scum came right off. I'm completely impressed and no coughing from all the chemicals in cleaners. Never buying shower cleaner again. 1 cup each - warm white vinegar (microwave 2 min) + 1c Original Dawn. Spray, leave for 15 min, rinse.