I know this sounds ridiculous but does anyone clean their cleaning brushes? I never gave much thought to this, then stumbled upon a box of old gun stuff including brushes and rods caked with... gunk, I don't know what it is. For the sake of extending the life of the brush (either copper or nylon) and / or keeping extra gunk/grit out of the gun the next time you clean, should you clean the brush? I've read that prior to rebluing a gun people use denatured alcohol to degrease gun parts, would soaking brushes and wiping rods with denatured alcohol work for this, then let the brush sit to let residual alcohol evaporate (that's what works for removing paint from airbrush parts)?