We've previously looked at ways to clean a cast iron pot with salt, but Instructables has a more efficient method that uses bamboo skewers. The abrasive surface of the ends scrapes the pan without taking off the seasoned finish.
Salt creates a safe way of scrubbing without using soap and water. In my experience, however, dirty pans take lots of time and lots of salt to do the job completely. After the cleaning, I have a salty mess on the rag and in the sink.
Instead of salt, use a dozen bamboo skewers of they type you might otherwise use for kebabs and bind them together with rubber bands. You can even save used skewers from your next outdoor grill session for this purpose.
Watch the video to see this tip in action, as well as other cleaning tips for your cast iron pot.
How To: Clean Your Cast Iron Pan (including how NOT to) [Instructables]