Definitive List: Best Way to Clean Games

[Darth Vader]

Alright, before this forum topic goes away, let's get a list of what everyone thinks are the best ways to clean/repair games for every system. I'm not going to put my own picks, since I know next to zip about it (which is why I'm posting the question). List the system, and then the method.

ex.
NES
Open the games and clean with light grade sandpaper.

I also use sandpaper for NES games. Rubbing alcohol for SNES, Genesis and N64 games have never let me down. I have heard of some people using a dremel tool with a wire brush end for NES games as well, they say it works fine, but I will stick with my sandpaper.

Danny