Here are a few tips to clean your microwave without breaking a sweat:

1. Lemon and water: Cut a lemon in half and squeeze the juice into a bowl of water. Place the lemon halves in the bowl and microwave for 2-3 minutes, until the water has boiled and the inside of the microwave is steamed. Let it sit for a few minutes, then wipe down the interior with a damp cloth. The lemon helps to remove any lingering odors.
2. Vinegar and water: Mix equal parts water and vinegar in a bowl. Microwave the mixture for 2-3 minutes, until it comes to a boil. Let it sit for a few minutes, then wipe down the interior with a damp cloth. The vinegar helps to dissolve any grease or food residue.
3. Baking soda and water: Mix 2 tablespoons of baking soda with 2 cups of water in a bowl. Dip a sponge or cloth into the mixture and use it to wipe down the interior of the microwave. Rinse with a damp cloth and dry.
4. Microwave-safe bowl of water and dish soap: Fill a microwave-safe bowl with water and add a drop of dish soap. Microwave for 2-3 minutes, until the water has boiled and the inside of the microwave is steamed. Let it sit for a few minutes, then wipe down the interior with a damp cloth.