Today's thrifty tip is to clean a microwave using vinegar. I pour half water and vinegar in a bowl which I then put inside the microwave. Turn it on long enough to bring to a boil. I usually do 2-3 minutes. It depends on how high and your microwave. The steam loosens food particles and deordorizes. This will be hot so be careful and just wipe clean. I do use the same mixture in the bowl. Then I pour the rest down the drain with the baking soda method I posted before.