Quote Originally Posted by diskoboy View Post
For carts, I use Deoxit contact cleaner.

The stuff works wonders on dirty cartridge contacts.
Have to agree here. I have used it many years back, on an nes cart, which then went into intermittent nes system. The plus, worked perfect. Another plus, after a few carts had deoxit applied, the system would just work totally fine, without even needing to push the cart down. Connection was that good.

I keep a can of deoxit on hand, all the time, for that reason.