What’s your favorite cleaning method for connections

I like an Australian kiss personally!

@kevemaher 

It is not recommended to clean silver (Ag) surfaces with a scouring pad. A scouring pad will increase the surface roughness of the Ag. Roughing a Ag surface disrupts the ordered Ag crystal lattice, creating surface defects. Atoms at these defect sites have fewer nearest neighbors (lower coordination number) compared to a smooth surface or in the bulk, where atoms are fully coordinated. These uncoordinated atoms are more chemically reactive because they have dangling bonds that are not tied to neighboring atoms. Ag reacts very rapidly with organic sulfur compounds in the atmosphere to form silver sulfide (Ag2S), which is a semiconductor with a band gap of about 1.1eV. This reaction primarily occurs at uncoordinated Ag sites. Because the roughened surface has more uncoordinated Ag sites, it is now more reactive and more prone to corrosion.

Nobody has said if you can tell the difference (before and after).  

For interconnects contacts 99% alcohol is fine. For moving contacts like Potentiometers specified contact cleaners with lubricant. 

@ljgerens 

Thanks for your post.

Please provide references both for what you've described in your post and how quantitatively it affects sound.

I've been cleaning my few silver connectors as I've stated for decades. No ill effects have been observed.