I was just messing around today. Cleaning my kitchen, cleaning out the spice cabinets etc. I also cleaned out my microwave. I take a large pyrex measuring cup and fill it with water. I slice up half an orange and place the slices in the pyrex. I put the entire thing in the microwave and zap it for 10 minutes. I then let it sit for another 10 minutes to steam. When you take it out, the dirt, gunk, food etc has loosened up from the steam and orange oils. Wipe out and voila, a clean microwave. Well I was left with this pyrex container of leftover water logged slices and water. I set it aside, knowing I could find something to do with it.
Try it. Your whole house will smell wonderful and spicy and homey and comfy.