Cleaning ceiling fans with vinegar is a simple way to keep them running smoothly and looking their best. Vinegar is a natural product that can be used to clean many things, including fans. To start, pour a small amount of vinegar into a spray bottle and mist the fan blades with it. Be sure to use enough vinegar so that the entire blade is covered, but not so much that it becomes too thick or cloying. Next, use a cloth or paper towel to dry the blades of the fan. Make sure not to get any of the vinegar on the lightbulbs or other parts of the fan. Finally, replace any dirty or damaged parts of the fan with new ones if necessary.