If you’re looking to clean a varnished wood door, the best way to do it is to use a vacuum cleaner and bucket. First, take off all of the dust and dirt from the door. Then, use the vacuum cleaner to suck all of the dirt and dust out of the door. Finally, use the bucket to fill it with water and pour it over the top of the dirt and dust. Let it sit for a few minutes so that all of the water has soaked into the door. Then, using a cloth or paper towel, clean off any excess water and dry everything off.