I completely disassembled every gun that ever came to live here, soaked the pieces in Mineral Spirits, scrubbed each individual piece (including screw holes), rinsed with clean Mineral Spirits, and dried them with DRY high pressure compressed air. At that point they were hosed down with CorrosionX, and left to soak before blowing off all the CorrosionX that would come off. After assembly, I removed the remaining CorrosionX from the exterior with Hoppes #9, dried and polished with a cotton cloth, and put them on a shelf in the display cabinet.
There were guns in that cabinet for the better part of 30 years with no further attention other than vacuuming the dust off about twice a year (because the display cabinet isn't air tight).
Ralph Tremaine