Microwave: In a microwave safe bowl - water+ 1 TBSP vinegar. Microwave on high for 5 minutes. The steam will loosen all the dried on gunk on the microwave walls. After 5 minutes you will be able to wipe the walls and glass turning table clean!
Simply mix baking powder with water and a splash of vinegar until it forms a paste, and apply to the oven. The mixture remaining in the bowl can be place directly into the oven. Then set the Oven to 100 degrees for 45 mins.