To get your mirrors sparkling I have found this to be the perfect solution. We all know that coffee filters are great and lint free, but not that
absorbent. So I find that the best way to clean mirrors is to use a conventional glass cleaner, wipe them down with a paper towel and then quickly buff and remove that last little bit of cleaner film off the mirrors with coffee filters. It works quickly, you use less of them and you can buff to a perfect streak free shine.