This is a fast and easy way to clean your microwave. . . .
Put a squirt of dishsoap in a coffee mug and fill halfway with water. Put the cup in the microwave for about 3 minutes . . unless your microwave is crazy caked on dirty then probably 4 or 5 minutes would be better.
This will steam clean your microwave oven. Just take a rag and wipe it clean . . . plus it will smell fresh too!