Have you ever been in the middle of photographing something and you find that you need to remove some soiling? You try to scratch it off with your fingernail and if that doesn't work you look for a wet solution which means delaying the photos of a specific item?
Well, in looking for a dry solution, I started using an unorthodox tool.
Here's an example of the result.
After (about 3 minutes):
I got the idea to try it...