Use plain DeOxit D5S6 for everything. I usually use CRC "QD Contact Cleaner," it's cheaper.
Use Caig "Gold" only on gold plated connectors, if you want to get fancy.
Don't use "Gold" on potentiometers or faders. It leaves a coating which messes up the plastic elements. Caig "Fader lube" might be beneficial on plastic elements, I've not used it.