What is an easy way to clean my microwave?

Nobody likes a dirty microwave with baked on food scraps everywhere. It smells and is not hygienic at all. So what is a natural way to quickly clean your microwave?

To clean your microwave, just put a bowl of water with a tablespoon of lemon juice or vinegar in there and run it for two minutes. The steam helps loosen gunk and makes wiping out the microwave easier.