From my sweetheart.
Most of the cleaning is done on the workbench, an air hose, with very low air pressure, speeds the cleaning. Open display tends to become greasy, after awhile, even in a non-smoke home. Windex, in a spray bottle, works as a solvent. The Weaver M1a pictured above, came from a smoke environment, 15 years later, you can still smell smoke. 
Mike CT.
