Jay, sounds like a fibreglass "pen" might come in handy for cleaning contacts and prior to soldering, like a propelling pencil but with a bundle of fibreglass fibres in place of pencil lead.
http://www.amazon.co.uk/FIBREGLASS-P.../dp/B002UPK5BM
(the link is to Amazon UK, Amazon.com or other suppliers should also carry them)
For less abrasive contact cleaning, especially PCB edge connectors, a normal pencil rubber eraser can work well.
Another handy cleaning device is sold for rail modellers for cleaning the track, like a pencil eraser but contains a mild abrasive.


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