On Friday, May 29, 2015 at 6:44:57 AM UTC-5, Stormin Mormon wrote:

A friend of mine loves Caig De-Oxit for cleaning
electrical connections. I've not tried it.

Advance Auto Parts has tubes of dielectric grease,
for when you put the connections back together.
Help keep moisture out and reduce corrosion.

....already covered, but thanks anyway.